Question

--- Who has eaten all the cake, Jim?
--- Oh,       must be your two pet dogs.

A．it

B．they

C．that

D．which

Answer 1

A

考查代词。根据句意并不知道是谁，不知道性别，故用it作代词。句意：——吉姆，谁吃了所有的蛋糕？——哦，一定是你的宠物狗。