Ⅰ.单句语法填空
1．They found an abandoned(abandon)cottage in the wild mountains.
2．He was just falling asleep when there was a loud knock at the door.
3．It suddenly occurred to one of the workers to open(open) up the box.
4．I think these interesting old customs should be preserved(preserve)．
5．Seeing her classmates burst into laughter because of her foolish mistake，she burst into tears(tear)．
6．How was it that they discovered the entrance to the underground palace?
7．He talks about Rome as though he had been(be)there before.
8．He collapsed in the street and died on the way to hospital.
9．The loss (lose) of the money has been a weight on my mind.
10．Tom had collected (collect)more than 300 Chinese stamps by the time he was seven.
