【推荐1】The sun ________ (消失) when the dark clouds covered the sky.

【推荐3】We all look forward to the day when COVID-19 will ________. (appear)

【推荐1】When will you ________（允许）me to have my own smart phone?

【推荐2】We should c________ her up when she is sad.

【推荐3】根据下列句子及所给单词的首字母写出所缺单词。(每空限填一词)
1. My parents always tell me not to t_________ strangers easily.
2. Boys, you must o________ the rules when playing basketball.
3. In order to r________ air pollution, we should use more solar power.
4. To a________ waking the children up, he often used his key to open the door and stepped in quietly .
5. Tony has a good sense of h__________. He often makes us laugh.
6. As we are busy in the daytime, we are going to the flower market t_________.