This is ___ ticket. It’s not mine.
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I have two ___ and three sharp ___.
A. watches/knives
B. watches/knives
C. watchs/knifes
— What color are the cats?— I think ___ white and black.
A. they’re
B. them
C.it’s
___ trousers are those?
A. Whose
B. Who
C. Which
___ hour equals sixty minutes.
An
B.A
C.C.不填