Ithas been quite some time since we_________________you at your office in Beljing(2019年6月第30题)
A. visit
B. visited
C. havevisited
D. hadvisited
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Companies understandably ask: why should I train you _________________ you ' ll leave and work for my competitors?(2018年12月第21题)
A. if
B. unless
C. until
D. although
Only by being open - minded and willing to try new things ______________ happy in Arts and Sciences.(2018年12月23题)
A. a student truly can be
B. truly a student can be
C. a student can truly be
D. can a student be truly
________________most students own a smartphone , the school does not allow them to use it in the class.(2018年6月第23题)
A. EVen though
B. In case
C. Now that
D. If only
He stayed patient and answered every single question,______________ obvious the answer was.(2018年6月第26题)
A. no matter when
B. no matter whether
C. no matter what
D. no matter how