Ⅰ.单句语法填空
1．At noon they got to a hill，on top of which stood (stand)a temple，dating back to hundreds of years ago.
2．It never occurred to me that my devoted friend should have turned against me，which really upset me.
3．The supermarket is under construction now and will be put into use next year.
4．Sam picked up some knowledge of the computer just by watching others working on it.
5．Good friends find it hard for them to separate (separate)from each other.
6．In order to avoid punishment/being punished (punish)，the boy made up an excuse for his being absent from school.
7．—I feel tired and my feet hurt.
—It's no wonder.You have been standing (stand)for so long a time to give the lecture.
8．Mr.Smith，I should tell you that this is the fifth time you have mistaken (mistake)me for my twin sister.
