根据句子意思，用括号中所给汉语提示或英语单词的适当形式填空，写出空缺处所填单词的正确形式。(每空一词)

The old woman walked _________ the road carefully．(穿过)

根据句子意思，用括号中所给汉语提示或英语单词的适当形式填空，写出空缺处所填单词的正确形式。(每空一词)

We should pay attention to our behavior and try to be good _________．(公民)

根据下列句子的意思及所给的汉语提示，写出空缺处单词、固定短语或固定搭配的正确形式。

Victor _________(敲)the door before he walked into the room．

根据下列句子的意思及所给的汉语提示，写出空缺处单词、固定短语或固定搭配的正确形式。

We Chinese sometimes _________(借)words from English when talking．

写出空缺处单词、固定短语或固定搭配的正确形式。

Mrs．Chan told us to write as _________(care)as we could．

写出空缺处单词、固定短语或固定搭配的正确形式。

They have invited a _________(science)to give them a speech on space．