Once I went to a German city for vacation. The trip left a     1     (deep) impression on me than before. It was already dark outside when I arrived at the airport at 6 p.m. The first thing was to find a place to stay. I decided     2     (call) the youth hotel. But to use the phone I    3     (need) some coins. I asked a lady for help. To my surprise, she gave me three     4     (coin) to use. But all the phones there needed phone cards which could only be bought at post-offices during the daytime. I was afraid I wouldn’t be able to call the hotel.     5     old gentleman helped me. He couldn’t speak English     6     understand that I needed to make a phone call. He showed me to the phone and inserted（插入）his phone card. I called the hotel and found a place to stay that night. The     7     (kind) of German people made me feel at home.

Wherever I went, I asked people for directions. It surprised me that almost every young German could speak English     8     ( fluent). Older Germans couldn’t speak English very well, but they would try to help me whenever they could. One middle-aged man even drove me to the place I was looking for. My experience in Germany completely changed     9     (I) impression of Germans.

I thought Germans were not     10     (friend) to foreigners before, but things have changed since then. The people in Germany couldn’t be more friendly.

Right now， most people's attention is on the COVID﹣19 pandemic. In     1    way， this pandemic is also warning us to protect our planet Earth.

World Earth Day， the international movement aiming     2    protecting and improving Earth's environment， is celebrating its 50th anniversary on April 22. For Earth Day 2020， the theme is climate action.    3    （celebrate） this， the Earth Day Network organized the Great Global Clean﹣up event. The network hoped that this would be the largest volunteer event in history， with people from all over the world    4    （set） up events to remove billions of pieces of trash from green spaces， urban communities and waterways. But due to the current ban on public gatherings and lockdown measures in many affected countries， clean﹣up events     5    （postpone）.

That said， the occasion will still continue in a digital way. "    6    it be coronavirus or our global climate crisis， we cannot shut down.    7    ， we must shift our energies and efforts to new ways to mobilize （动员） the world to action. " said Earth Day Network President Kathleen Rogers.

While the event may not reach its originally     8    （plan） grandeur（宏大）， Earth Day 2020 could play a role in helping us sustain     9    （environment） friendly changes， such as practices like teleworking and video conferencing     10    have become more prevalent （普遍的） in this time.

When meeting people at the airport, most people smile and shake hands with people they meet. We know that a smile is usually a sign that people feel friendly and happy,     1    what if we don’t know who the new person is? What if we are not     2    (introduce) by a friend? Sometimes people are dangerous and humans have to find ways to protect     3     (themself). We have to make sure we can trust people we do not know, and we have to show that we are not dangerous, showing our hands means that we are not armed. In many cultures today, the Western custom of    4     (shake) hands is used. We use our right hand, which is usually     5     (strong) than the left one. If we are using our hand this way, it cannot be holding a knife or a gun.   It shows that we can trust each other.

Not all cultures use the handshake, and people in many Asian cultures do not always touch another person. Japanese people might cover one hand with     6     other hand, depending on     7    they are greeting, bow     8    (slight) or quite low. A Muslim will touch his heart, mouth and forehead     9     (show) respect. They are all keeping their hands busy. In almost all cultures, to smile and show an open right hand     10     (mean). "Welcome, you are safe with me."

6 . There are many stories about the Mid-Autumn Festival,     1     has been celebrated in China for centuries. But the most     2    (move) one is the story of Chang’e. It tells after Hou Yi shot down the     3    (nine) suns, a goddess gave him magic medicine to thank him. Hou Yi planned share it     4     his wife, Chang’e .But a bad man, Pang Meng, tried to steal the medicine when Hou Yi     5    (be) out. Chang’e refused to give it to him and then drank it all. She became very light and     6    (fly) up to the moon. Hou Yi was so sad and missed her very much. One night, he found that the moon was so bright and round     7     he could see his wife there. He     8    (quick) laid out her favorite fruits in the garden.     9     he wished that she could come back!

After this, people started the tradition of admiring the moon and sharing mooncakes that carry     10     (they) wishes to the families they love and miss.