48. Which do you think is (interesting) , going for a picnic or going fishing?

47. They are looking forward to (win) the first prize in the coming competition.

46. Many people enjoy reading ebooks,but I  (like) it as it s bad for tke eyes.

45. Shops are not allowed to (sale) cigarettes to anyone under the age of 18.

44. The soldier saved the boy from the flood with a piece of (wooden) .

43. The boy moved (quiet) into the hall as the concert had already begun.

42. I am not satisfied with the service here. I want to speak to the (manage) .

41. plan to enter for a summer camp with a friend of (me) .

40. Chinese style road crossing is a bad habit and must be (prevent) .

39. These years,the air quality has become (bad) than before.