问题

ime _____ sitting at a desk, office workers are generally troubled by health problems.
A:being spent
B:having spent
C:spent
D:spending;
B:having spent
C:spent
D:spending;
正确答案是:
同类题型
Peter,perhapsJohn,____playingwiththelittledog.
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Was George sorry for what he’d done —________It was just like him!
at the differences between her culture and theirs, Annie wanted to return home.