________dangerous to swim in the lake. Remember________in the swimming pool.
A.That’s; swimming B.It; to swim C.This; swimming D.It’s; to swim
—When you free last week?
— Well, I have a free day because there was too much work.
A. did; didn’t B. were; didn’t C. were; wasn’t D. did; wasn’t
I didn’t see them__________ the room because I was in the kitchen then.
A.enter B.entered C.entering into D.enter into
He________down from his bike. I________sorry to hear that.
A.fell ; fell B.felt ; felt C.fell ; felt D.felt ; fell
Matches catch fire easily. So you should________fire.
A.keep it away from B.keep it far away
C.keep them away from D.keep them far away
—Could you join us this afternoon?
—Sorry, I _______. I take care of my little sister because my mother is out.
A.can’t; may B.couldn’t; have to C.can’t; have to D.couldn’t; may