They arrived at a country house, in front of ______sat an old man
A. whom
B. who
C. which
D. that
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The engineer ______my father works is about 50 years ol
A. to whom
B. on whom
C. with which
D. with whom
If there’s one man______opinion matters more than any others’, it’s our manager. (2014/6 A)
A. who
B. who's
C. which
D. whose
You are required to enter the name of the city______your company is located.(2018/6 B)
A. inwhich
B. where
C. what
D. which
In the survey, we asked the workers about things_____made their work harder to do.(2018/12 B)
A. what
B. that
C. who
D. this