26. in the US before? a. Are you going to be b. Have you been c. Are you being d. Will you be 27. We two weeks of our vacation in Spain. a oiled b. caught c. failed d. spent 28. Bill: do we have to wait for the bus? Tim: Just a few minutes. a. How long b. How about c. How much d. How many 29. It's noon, but Tom is asleep. He all morning. a. has been sleeping b. is sleeping c. sleeps d. will sleep 30. We finish any of our homework because we got home late. a. mustn't b. wouldn't c. shouldn't d. couldn't