单项选择题

"Wendy has a terrible cold. " " How long （）it"

A. has she had
B. she has had
C. had she
D. she has

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She has a small machine for ______ coffee beans.
A. breaking
B. smashing
C. grinding
D. crushing
单项选择题
Why is （）you are so late for class

A. that it
B. it be
C. it that
D. that
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