单项选择题
Automatic machines can only do the jobs they ______ to do.
A.have asked
B.ask
C.have been asked
D.will ask
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单项选择题
She has neither read the book nor ______ the film.
A.seen
B.sees
C.see
D.saw
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单项选择题
She is very careful. She ______ very few mistakes in her work.
A.does
B.makes
C.takes
D.gets
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