31. He and his brothers _____________ good at speaking English.
查看答案
32. Please keep the door ______________ while the train is coming.
A. close
B. closed
C. to close
33. I visited a friend of _____________ in town and then caught a train home.
A. me
B. my
C. mine
34. John will help you with the food when he ______________ cleaning the table.
A. will finish
B. finished
C. finishes
35. I'll call you this evening and let you _____________ how she is.
A. know
B. knowing
C. to know