用括号中所给词的适当形式填空。

Noodles are the main ________ of our factory．(produce)

用括号中所给词的适当形式填空。

The lean of Tower of Pisa got ________ as it grew．(bad)

用括号中所给词的适当形式填空。

Since you have ________ to me clearly, you needn't repeat it．(explanation)

用括号中所给词的适当形式填空。

Oxygen is an ________ gas．It keeps us healthy and alive．(visible)

根据句意用括号中所给单词的适当形式填空。

This thick wire is ________ to my computer．(connect)

根据句意用括号中所给单词的适当形式填空。

Air is ________, but we can feel it when it moves．(visible)

根据句意用括号中所给单词的适当形式填空。

Tom offered me a cigarette．I refused ________．(polite)

根据句意用括号中所给单词的适当形式填空。

We pay the telephone bill ________．(month)

根据句意用括号中所给单词的适当形式填空。

Please give me an ________ of why you are always late for school．(explain)

根据句意用括号中所给单词的适当形式填空。

Make sure you know the ________ of the fire exit nearest your room．(locate)