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A. have taken place B. were taken place C. have been taken place

A. pulled down B. were pulled down C. was pulled down

A. to have; to fly B. to have; flying

C. having; to fly D. having; flying

A. out B. out of C. to

A. How dangerous the scene B. What dangerous a scene

C. How a dangerous scene D. What a dangerous scene

—— Because it’s interesting and useful.

A. Where B. How C. Why D. What

— . And I have little time to watch them.

A. Of course, I do B. No, I don’t

C. Yes, of course not D. No, I do indeed

A. what;because of B. whether; because

C. that; though D. how;because of

—— He _______ in the kitchen.

A. cooks B. cooked C. is cooking D. cooking

A. do B. are C. does D. come