—Have you found the information about Bill Gates________ you can use for the report? —Not yet. I’ll search some on the Internet.
#42648
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who
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what
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whom
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which
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—Why do you call him Mr．Knowledgeable?— Because he knows almost everything we want to know．
#42559
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which
B
what
C
who
D
that
Now China is fighting against illegal cooking oil（地沟油）, a kind of waste oil _____can cause a lot of illness.
#42592
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which
B
whose
C
who
D
what
She is the only one of the girls in our class______ been to the United States.
#43155
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who have
B
that had
C
whom has
D
that has