1．In terrible fifteen minutes, a large city lay in ruins, with bricks covering the ground like red   （落叶） in the autumn. (fall)

2．I     （本想来拜访）you, but I was too busy then. (think)

3．The PLA men built shelters for the survivors    （家园被毁）in the earthquake. (destroy)

4．When he woke up, he     （发现自己躺）in the hospital. (find)

5．—You look tired.

—Yes. I      （一直在工作）non-stop since yesterday afternoon, and I still need to work on. (work)

6．If my mother      （叫醒我）on time, I would not have missed the school bus. (wake)

7．You should have explained to us     （这种情况是怎样发生的）. (come about)

8．Not only       （他听见）it, but he saw it as well. (hear)

9．To be honest, I doubt      （他会成功）. (succeed)

10．      （令我惊讶的）was that I found my house broken in when I got back. (surprise)