单选题：He found it increasingly difficult to read, ______ his eyesi..

________ there is going to be a policy change ________ of those things is going to change.[ ]A．Unless; fewB．Until; fewC．Unless; noneD．Until; none

People often have the belief ________a healthy environment and development cannot be possible at the same time, but this does not have to be true.[ ]A. thatB. which C. whereD. what

单句改错如有错误,则按下列情况改正：此句多一个词：把多余的词用(\)划掉，在该句右边横线上写出该词，并用斜线划掉。此句缺一个词：在缺词处加一个漏字符号(^)，在该句右边横线上写出应加的单词。此句错一个词：在错词下划一横线，在该句右边横线上写出改正后的单词。1. Charles asked he could use my car.______2. Mother asked me where I will go the next day.______3. Don't look at someone

________your help, how could I have passed the difficult interview! [ ]A. But forB. Thanks toC. Owing toD. As to

I always take something to read when I go to the doctor's ________ I have to wait. [ ]A. in caseB. so thatC. in orderD. as if