. The reason for all the changes being made _______to us yet.
A. has not explained B. has not been explained
C. did not explained D. were not explained
24. You ought to have put the milk in the refrigerator, and now ________sour.
A. it smell B. it is smelt C. it smells D. it is smelling
Tim ________since he lost his job three weeks ago.
A. had been unemployed B. was unemployed
C. has been unemployed D. has unemployed
– “Have you moved into the new flat?”
“Not yet. The room ________.”
has been painted B. is painted C. paints D. is being painted
It is said that a new robot ______ by him in a few days.
A. designed B. has been designed
C. will be designed D. will have been designed
第三部分、书面表达（满分15分）
环境一直是人们普遍关注的话题，也是每位学生喜爱和经常讨论关心的话题。假如你是李华，请根据下表的信息，写一篇英文短文。
注意: 1.词数: 120-150左右;
2.可适当加入细节，以使行文连贯。
参考词汇 : schoolyard 校园
Environment
|
环境 |
怎样保护、创造良好的环境 |
|
社会环境 |
说得体语言，有礼貌，有爱心，保持清洁，乐于助人，尽力为别人照想。 |
|
学校环境 |
尊敬师长，团结同学，互助互爱，宽以待人，不要随地吐痰，积极创造有利于健康、学习的生活环境。 |
|
家庭环境 |
体谅父母，与父母沟通，交流，做力所能及的事。 |
|
就如何保护环境，发表自己的观点…… |
