选择题
一、单项选择
1.--What when I phoned you?
A. had you done; finished
B. were you doing; had just finished
C. did you do; had just finished
D. were you doing; was finishing
2. My uncle___________ until he was forty-five.
A. married B. didn’t marry
C. was not marrying D. would marry
3.Scientists say it may be five or ten years___________ it is possible to test this medicine on human patients.