题目内容

【B9】

A. then
B. already
C. ever
D. yet

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【B4】

A. because
B. for
C. who
D. he

【B3】

A. from
B. mostly
C. clearly
D. almost

【B19】

A. disappointed
B. delighted
C. surprising
D. angry

Mary wants to visit her uncle's. She ______ for the bus for two hours but it has not come

A. has been waiting
B. is waiting
C. has waited
D. will be waiting