题目内容

I think it must have rained,__________?

A. don’t
B. didn ’t
C. hasn ’t it
D. didn ’t it

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Pay attention to road sign while driving in foreign country.()

A. a; a
B. the; the
C. the; a
D. a; the

甲公司委托乙公司开发一种工具软件,未约定软件的使用权、转让权及利益分配办法,甲公司按规定支付乙公司开发费用。然而,乙公司按约定时间开发该工具软件后,在未向甲公司交付之前,将其转让给丙公司。下列说法中,正确的是()

A. 该工具软件的使用权属于甲公司
B. 甲和乙公司均有该工具软件的使用权和转让权
C. 乙公司与丙公司的转让合同无效
D. 该工具软件的转让权属于乙公司

Is it the school _________ you used to study _________ they visited yesterday?

A. that; that
B. which; that
C. in which; which
D. where; that

——Who knocked at the door?——I’ve no idea. I just pretended nobody was at home, so I didn't ask who _____ was.

A. he
B. that
C. she
D. it

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