43. Some teachers today are                     (對學生的要求過于嚴厲) .(hard)

42. It's               (把這張漂亮的桌子用桌布蓋起來真是可惜) .( shame)

41. You have to              (等上幾個小時讓這些衣服干透) .( couple )

40. —Mary is going to my house for dinner tonight.

—You                  (應該盡你所能讓她有賓至如歸的感覺) .(suppose)

39.             (如果你戒掉酒) ，you'll feel much healthier. (cut)

38. It is the parents'job             (在家中為他們的孩子提供一個干凈、舒適的環(huán)境) .(provide)

37. The old man              (習慣了住在鄉(xiāng)村的) will feel lonely in the city.(use)

36. We should                    (努力幫助保護動物) .(effort)

35. You can discuss your problems with your parents                (因為他們有許多經(jīng)驗) .(have)

34. The environment              (將會處在極大的危險之中) .(be)