[ Grammar ]
If John _______ hard, he could pass the examination.
A. works
B. worked
C. has worked
D. had worked

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Grammar › ViewShe … a uniform to school every day.
A. is wearing
B. wear
C. wears
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It’s really hot in here. ……………..a window.
A. I will open
B. am going to open
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A. anybody
B. nobody
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Vocabulary › View
Windmills ____________ electricity from wind.
A. interfere
B. civilize
C. generate
D. provide