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A. a；a B. a；the C. the；a D. the；the

A. OK. B. Anything else. C. I hurt my knee.

A. The same to you. B. Good idea. C. Thanks.

A. catch B. catches C. to catch D. catching

A. ['kv] B. [klad] C. [kst]

A. having B. have C. to have D. having had

--- day is OK. I’m free at weekends.

A. Both B. All C. Either D. None

--- No, he there. I saw him in the library a minute ago.

A. may be B. must be

C. can’t be D. won’t be

--- My pleasure. I hope they are of some value.

A. suggestions B. news C. message D. information