A. whether B. because C. that D. when
8. The chief editor expressed his doubt _____ senior people would not enjoy reading such magazines.
A. which B. how C. whether D. that
9. —Have you any plan for the holidays in October?
—No, we have not decided _____ we should spend the holidays.
A. where B. what C. when D. why
10. The young girls we met in the street corner seemed to be frightened. What do you think _____ made them so?
A. which B. what C. that D./
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