根据句意填写句子。

1. He might be running to _____ (赶上公交车).

2. Our neighborhood _____ (过去常常是) very quiet.

3.  There must be something _____  (拜访) the homes in our neighborhood.

4. You _____ (害怕) too much homework.

5.  They can't find _____ (任何奇怪的事物).

下列药品有剧毒，长时间吸入可能会引起操作者失明和癫狂的是（）。

A.甲苯

B.丁醇

C.甲醇

D.二甲苯