It has come to be realized ______ particular matters in the air expose us to lif

题型：上海模拟题难度：来源：

It has come to be realized ______ particular matters in the air expose us to life"s real danger. [     ]
A. what
B. which
C. when
D. that

答案

举一反三

He made a mistake, but then he corrected it _____ it got worse.[     ]
A. until
B. when
C. before
D. as

题型：四川省月考题难度：| 查看答案

______the bad weather, they finished all the work on time.  [      ]
A. Though
B. Because of
C. No matter how
D. Despite

题型：广西自治区期中题难度：| 查看答案

— Some Chinese students find it hard to get used to the life in London.
— Exactly, ______ they"ve learnt a lot about the city before. [ ]
A. if
B. now that
C. as though
D. even though

题型：海南省期中题难度：| 查看答案

_______ we start thinking and believing we can do it, anything is possible.[     ]
A. Since
B. While
C. Until
D. Once

题型：黑龙江省期中题难度：| 查看答案

I don"t doubt _____ he will pass the exam.   [     ]
A. whether
B. that
C. when
D. how

题型：黑龙江省期中题难度：| 查看答案