57. 當(dāng)知道她贊同我們的觀點(diǎn)時(shí)，我很激動(dòng)。

Pm excited when I know she  us.

56. 開會(huì)時(shí)保持安靜是重要的。

It’s important at the meeting.

55. Please draw two (線) across the page.

54. I ( 想知道) if Tom has been to the Great Wall.

53. The houses were (毀壞) in the big earthquake

52. He is an (不出名的) man,but we all respect him.

51. When saw him,he was (解釋) some questions to his students.

50. It is t . It’s raining all day.

49. I'm really p when I heard I passed the English exam.

48. The k are used to cut the fruits.