Did you help them ____ their room? A. cleaned B. clean C. cleaning
挑出不同类的一项。A.ruler B. it C. I
挑出不同类的一项。A.bed B. fish C. card
So many .A.card B. a card C. cards
What’s my hand?A.in B. on C. at
—Is it a horse?—No, it .A.is B. isn’t C. is no