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Word has come _____some American guests will come for a visit.
#69203
A
what
B
whether
C
when
D
that
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Is oxygen the only gas ________ helps fire burn?
#68685
A
that
B
/
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what
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The result of the survey shows         successful people have in common is        they all have confidence.
#69211
A
whether; that
B
what; that
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The girl got herself into a serious situation ____ she was likely to lose control over the motorbike.
#73157
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where
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which
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while
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Clean water and fresh air are essential for our daily life, _______ we can’t live.
#66990
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by which
B
without which
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that
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Both parents and teachers work hard at either preventing failure or protecting the children from the knowledge_______ they have failed.
#72062
A
where
B
why
C
which
D
that