45. -Do you go swimming in June?

　 -____________.

A. Yes, never　　　　 　 B. Yes, sometimes 　　　 C. No, ever　 　　　 D. No, usually

44. The teacher comes in and says, "Stop ____________. It's time for class."

　　 A. talk　　　　　 　　 B. talking　　 　　　　　　 C. to talk 　　 D. talks

43. You can copy down my answers, ____________I'm not sure they're right.

A. although　　　　　 B. or　　　 　　　　 C. so　　　 D. because

42. David is __________running. He thinks doing some running is _________ his health.

A. good at, good at　　　　　　　　 　　　 B. good at, good for

C. good for, good for　　　　　　　　　 D. good for, good at

41. -What is he doing now?

　 -He __________soccer.

A. is playing　 　　 B. are playing　　　 　　 C. plays　　　 　　　 D. playing