He ______ to play ______ before he was 11 years old.
A. had learned, piano
B. had learned, the piano
C. has learned, the piano
D. learns ,piano
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I ______ the article when they came.
A. had written
B. have written
C. had been written
D. have been written
By six o’clock they ______ twelve hours.
A. worked
B. have worked
C. had worked
D. will work
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
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