题目内容

The moment the 28th Olympic Games ____ open, the whole world cheered.

A. declared
B. have been declared
C. have declared
D. were declared

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–Did you see a man in black pass by just now?--No, sir. I ____ a newspaper.

A. read
B. was reading
C. would read
D. am reading

--____you ____him around the museum yet?--Yes. We had a great time there.

A. Have; shown
B. Do; show
C. Had; shown
Did; show

When the old man _____ to walk back to his house, the sun ____ itself behind the mountain.

A. started;had already hidden
B. had started; had already hidden
C. had started; eas hiding
D. was started; hid

Scientists think that the continents ____ always where they ____ today.

A. aren’t; are
B. aren’t; were
C. weren’t; are
D. weren’t; were

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