根据下面句子及所给汉语注释，写出空缺处单词的正确形式。每空只写一词。

Smoking is not ________(允许)in this restaurant．

根据下面句子及所给汉语注释，写出空缺处单词的正确形式。每空只写一词。

It wasn't very ________(有礼貌的)of you to serve yourself without asking．

根据下面句子及所给汉语注释，写出空缺处单词的正确形式。每空只写一词。

Charlie tried to ________(使平静)the frightened children．

根据下面句子及所给汉语注释，写出空缺处单词的正确形式。每空只写一词。

He has always been a big ________(迷)of Michael Jackson．

根据下面句子及所给汉语注释，写出空缺处单词的正确形式。每空只写一词。

Please ________(切)me a piece of cake．

根据首字母及汉语提示，完成下面单词的拼写，使句意通顺．

We have to c________(携带)a lot of books in our school bags every day．

根据首字母及汉语提示，完成下面单词的拼写，使句意通顺．

Tom i________(邀请)all his best friends to his birthday party last Sunday．

根据首字母及汉语提示，完成下面单词的拼写，使句意通顺．

Our teachers are all very s________(严格)with us students．

根据首字母及汉语提示，完成下面单词的拼写，使句意通顺．

He is writing on the blackboard with a piece of c________(粉笔)．

根据首字母及汉语提示，完成下面单词的拼写，使句意通顺．

Do you think this kind of water is s________(安全)for drinking?