Do you know ______ he did not turn off the light?A. what B. how C. if D. why

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Do you know ______ he did not turn off the light?
A. what
B. how
C. if
D. why

答案

举一反三

Can you show me _____ to start the computer?
A. what
B. where
C. how
D. which

题型：江苏期中题难度：| 查看答案

While flying, a bat makes a sound which hits things and comes back to its ears.
In this way, it"s able to know _____ the things are and avoid bumping into them. [ ]
A. how
B. where
C. what
D. which

题型：专项题难度：| 查看答案

—I don"t know _____ Mr. Green will come to see us.
—He will help us with our English.
A. why
B. when
C. how
D. where

题型：专项题难度：| 查看答案

I was told _____ Bill Gates was thirteen he began to play with computers. [ ]
A. that how
B. how that
C. when that
D. that when

题型：专项题难度：| 查看答案

I followed him to see _____ he was going. To my surprise, he went into the police station. [ ]
A. whether
B. where
C. why
D. when

题型：同步题难度：| 查看答案