By six o’clock they ______ twelve hours.
A. worked
B. have worked
C. had worked
D. will work
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She said that she ______ much progress since she came here.
A. would make
B. makes
C. has made
D. had made
The boy was delighted with his new story book which he ________ for a long time.
A. was wanting
B. has wanted
C. has been wanting
D. had been wanting
It was midnight and he was tired because he ________since dawn.
A. was working
B. has worked
C. had been working
D. has been working
He ________ to get her on the phone, but he didn’t get through it.
A. was trying
B. had been trying
C. tries
D. has tried
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