【推荐1】In China it’s i_________ to stick your chopsticks into the bowl.

【推荐2】It’s ________ (polite) to shout at your parents.

【推荐3】He seems so ________ (polite) that no one wants to work with him.

【推荐1】I couldn't sleep well in the hotel because the bed was so __________. (comfort)

【推荐2】Winter is _________ (寒冷的) in Beijing.

【推荐3】He is 100kg. He is too f________.

【推荐1】根据句意及汉语提示写出单词的正确形式。
1. A new system has been used to______ (控制) the traffic in the city.
2. — What is your mother doing?
— She is talking to her friend on the______(电话).
3. The students ______(欢呼) loudly, because they won the basketball game.
4. It’s not fair to ______(踢) other players during the football match.
5. It’s a______(遗憾) that you’ve missed such a good opportunity.

【推荐2】It’s important to _________ (education) young students.

【推荐3】It’s ________（必要的）for you to study hard when you are young.