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A. a; a B. an; an C. a; an D. an; a

A. is visiting B. visited C. was visiting

A. in B. on C. at D. with

A. a; an B. a; a C. an; an D. an; a

—We had great fun ________ on the beaches.

A. play B. plays C. playing D. played

A.do I B.do you C.is he D.isn’t he

A. practice B. grow C. improve

—I'm not sure.If he ______，he ______ a good time.

A. comes；have B. will come；will have

C. comes；will have D. will come；have

A．it is B．it isn’t C．he is D．he isn’t

—Oh，sorry. I ______ it the day before yesterday.

A. watched B. watch

C. am watching D. will watch