—_______ do you like dolphins so much? —Because they’re really cute! A. Why B. Who C. When
-Where is John?-He ______ the science lab.A. has gone to B. has been to C. went to
-How about having a picnic with me?-I’d love to, ______ I’m afraid I have no time. A. so B. and C. but
-Dad, may I watch TV?-No, you can’t. You _______ finish your homework first.A. must B. can C. may
-Oh, so many people in the park?-Nobody likes to stay at home ______ Sunday morning. A. in B. on C. at
-How much is the pair of shoes?-Twenty dollars ____ enough.A. is B. are C. am