Cathy stopped working when her son was born __________ she could stay home and take care of him.
A. even if B. so that C. unless D. while
－Did you see a girl in red pass by just now?
－No, sir. I __________ a newspaper.
A. was reading B. read
C. had read D. would read
It was so noisy outside that we ____________ hear what they were talking about.
A. mustn't B. didn't have to
C. ought not to D. couldn't
I am in a hurry because the train will leave ____________ half an hour.
A. by B. for
C. in D. over
I ________ many interesting lectures since I came to this school.
A. attended B. had attended
C. am attending D. have attended
I will tell him the news as soon as he ____ back.
A. will come B. comes
C. came D. is coming
