51.　 We want to have a talk with your ________________. (manage)

50.　 I know these ____________ over there quite well. (fish )

49.　 He is a ___________ scientist. He comes from ______________. (German)

48.　 I am not used to the weather here. It is ____________. (change)

47.　 All of them are ___________ to their new ____________. (friend)

46.　 Of all the boxes, the one in the corner is the ________________. (heavy)

45.　 The weather report says it is _____________. (cloud)

44.　 All of you must hand in your ____________ after class. (paper)

43.　 The teacher ___________ the matter just now. ( discussion)

42.　 Some ____________ are interested in Chinese food. (Germany)