问题
How often do I need to feed the dog?——It___food everyday, or it will be hungry.
A:must give
B:must be give
C:must be given
D:must be gave
B:must be give
C:must be given
D:must be gave
正确答案是：
同类题型
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Excuse me . Have you got an eraser ? —-Sorry , I haven’t . Why __________you ask Mary ?