38. John has two brothers， but either ____out of work now.

　　 A.　　 are　　　　 B. is　　　　 C. has　　　　 D. have

37. ____can be done _____been done.

　　 A.　　 All； have　 B. All that； have　

　　 C. All； has　 D. All that； has

36. The Chinese people _____hard-working and brave.

　　 A.　　 are　　 B. is　　 C. has been　 D. are being

35. Nobody ____to smoke in the cinema.

　　 A.　　 allows　　 B. allow　　 C. is allowed　　 D. are allowed

34. The air in big cities _____very dirty by factories.

　　 A.　　 are often made　　　　 B. is often made

　　 C. have often made　　　 D. has often made

33. The number of people invited _____fifty， but a number of them _____absent for different reasons.

　　 A.　　 were； was　　　 B. was； was 　　　C. was； were　 D. were； were

32. All but one ____here just now.

　　 A.　　 is　　 B. was　　　　　　 C. has been　 D. were

31. Father went to his doctor for ____about his heart trouble.

　　 A.　　 an advice　 B. advice　 C. advices　 D. the advices

30. _____turn green in spring.

　　 A. Leaf　 B. Leafs　　　　　　 C. Leave　　　　　　　 D. Leaves

29. On the wall _____ two large portraits.

　　 A.　　 hangs　　 B. hang　　　　 C. hanged　　　 D. hanging