-Which of the two drivers is to blame for the accident?-____. It's the cyclist's fault
A. Both
B. All
C. None
D. Neither
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____ is believed that heavy smokers are more likely to develop serious illness.
As
B. It
C. Which
D. What
填入正确的代词形式。These are your books, Kate. Put ___ in the desk, please. (they)
____ must look after ____ things. (you)
-Are these ____ (you) pencils?-Yes, they are ____(our).