49.The number of the book in the library __________ over 20000.

A. is　 B. are　 C. were　 D. have

48.There __________ many animals in that zoo.

A. used to　 B.used　 C.used to have　 D. used to be

47.-Would you like tea or coffee?----________ is OK. I really don’t mind.

A.None　 B.Either　her　 D.Both

46.We find _______ necessary to pritect he earth.

A. it　 B. this　 C.that　 D.what

45.They can _________ speak English ,can they?

A.no　 B.hard　 C.hardly　 D. harder

44.We need ________ students to carry the boxes upstairs.

A.another　 B.three another　 C. more three　 D.three more

43.It ________ six years since we last _________ in Beijing.

A. was ;met　 B. has been ;met　 C.was ;meet　 D.is ;meet

42. I can’t wait ____ the present box.　　 A. open　 B. to open　 C. opening　 D. opened

41. Loud music makes me ____. So I feel very happy.

A. energetic　 B. stressed out　 C. energy　　 D. stress out

40. I ____ an expensive gift for my birthday, but I could not ____ it.

A. accepted, received　 　 B. received, accept　 　 C. accepted, receive　　 D. accepted, received