题目
题型：不详难度：来源：
The reason for his success is ______ he worked very hard.
| A．why | B．that | C．whether | D．how |
答案
解析
核心考点
试题【The reason for his success is ______ he worked very hard.A．whyB．thatC．whetherD．h】；主要考察你对连词等知识点的理解。[详细]
举一反三
—You seem to have known Dr. Ken for a long time.
—That’s true. ________ he joined our club years ago.
| A．Since | B．Until | C．When | D．If |
Helen plays the violin ________, if not better than, Kate.
| A．as well | B．so well | C．as well as | D．so well as |
---- I stayed awake _______ 12 o’clock to wait for my husband to come back last night.
------ Then you _____have had a good sleep, did you?
| A．until; mustn’t | B．till; can’t | C．before; should | D．when; would |
| A．what | B．when | C．that | D．which |
—If____, you can help others with their work．
| A．so | B．not | C．possible | D．ever |
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