题目内容

Hurry up! The concert __________ for ten minutes.

A. has begun
B. had begun
C. has been on
D. began

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She has _______ been to Toronto, has she?

A. already
B. never
C. ever
D. still

I________ from him since he left.

A. haven’t heard
B. didn’t receive
C. haven’t got
D. didn’t have

Jim ______already ______in this school for two years.

A. was; studying
B. will; study
C. has; studied
D. are; studying

患者出现哪个系统损害常预示病情危重、预后不良

A. 关节损伤
B. 肺部感染
C. 中枢神经损害
D. 心包炎
E. 急腹症

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