题目内容

Theengineer________myfatherworksisabout60yearsold.

A. towhom
B. onwhom
C. withwhich
D. withwhom幻灯片32

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Hehastwosons,________workaschemists.

A. twoofwhom
B. bothofwhom
C. bothofwhich
D. allofwhom

Heisamanofgreatexperience,________muchcanbelearned.

A. who
B. that
C. fromwhich
D. fromwhom

CarolsaidtheworkwouldbedonebyOctober,________personallyIdoubtverymuch.

A. it
B. that
C. when
D. which

Maythefourthistheday________weChinesepeoplewillneverforget.

A. which
B. when
C. onwhich
D. aboutwhich

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