(说一下为什么这样做的原因)
1.______I arrive,try holding a plece of cheese in front of her mouth
A.When B.After C.Before D.While
2.When the doctors arrived,he saw Mr Smith_______a fish in front of his wife's mouth
A.was holding B.holds C.held D.holding
3.Mice ______fish
A.like B.likes C.don't like D.doesn't like