His uncle went abroad in 2010, and ________since.
A. has not been heard of
B. had not been heard of
C. had not heard of
D. has not heard of
It is required in the library regulations that any book borrowed __________ by due time, or the borrower will be fined.
A. return B. be returned
C. returns D. is returned
I broke my relationship with John because he always found _______ with me.
A. error B. mistake C. fault D. failure
His new car, ________ he paid 7,000pounds, has already had to be repaired.
A. on which B. on that
C. for that D. for which
Your failure in the final exam is due to the fact that you didn't ______ enough importance to your English.
A．attend B．attack C．attach D．obtain
去年除夕到正月十五期间，北京雾霾天气出现的天数占到50%以上，严重影响了老百姓的生活和健康。请写一篇短文报道此事。内容包括：
1.描述一下北京雾霾的情况；
2.分析雾霾出现的原因；
3.提出治理雾霾的措施。
注意：词数不少于120词。 （请把首句抄到答卷！！！）
During the 15 days from New Year’s Eve to Lantern Festival.
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