Tom's shoes are the same as those football ________(play)．

根据句意和汉语注释，写出单词的正确形式。

As we know, air ________(污染)might cause many serious diseases．

根据句意和汉语注释，写出单词的正确形式。

It's not surprising to see so many ________(推销员)in such a big electrical shop in China．

根据句意和汉语注释，写出单词的正确形式。

________(立即), the enemy disappeared on the early foggy morning．

根据句意和汉语注释，写出单词的正确形式。

When the doctor came, the victim has already stopped ________(呼吸)．

根据句意，写出括号内所给单词的适当形式。

More and more teachers feel worried about some ________(teenage)strange behaviour．

根据句意，写出括号内所给单词的适当形式。

The government has realized the importance of the ________(safe)of the children who take a school bus．

根据句意，写出括号内所给单词的适当形式。

In China, it's becoming much ________(hard)for people to pass the driving tests．

根据句意，写出括号内所给单词的适当形式。

Do you think it's good for you to keep worries to ________(your), boys and girls?

根据句子意思用括号中所给单词的适当形式填空。

Rain is a pop ________(sing)now．