第1题：
I wonder how many years ago _______.
A.did you father retire
B.your father retired
C.has your father retired
D.your father has retired
第2题：
—I can't see the words on the blackboard. —Perhaps you need _( )
A. How long ago did you get it this
B. How long have you been like this
C. How soon have you got it
D. How soon have you liked this
第3题：
A、were you waiting
B、are you waiting
C、did you wait
D、do you wait
第4题：
第5题：
第6题：
A、an half hour’s
B、half an hour
C、half an hour’s
D、half a hour’s
第7题：
A.one and a half hour’s
B.one and a half hour
C.an hour and a half’s
D.an hour’s and a half
第8题：
Tina sat under the tree half an hour ago．（用now改写）
Tina ________,________under the tree now．
第9题：
第10题：