____ you promise to buy her a gift, you can’t break it in any case.
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A
Once
B
Until
C
For
D
That
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In some western countries, ________ are called “public schools” are not owned by the public.
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which
B
as
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what
D
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You will make much progress in English you work hard.
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as far as
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as soon as
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as long as
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as
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which
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what
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as
B
what
C
that
D
which