She’ll never forget her stay there ________ she found her son who had gone missing two years before.
#80671
A
that
B
which
C
where
D
when
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(2013·杭州模拟)Encouraged by my science teacher, I set about my studies on developing my product, I hope I will succeed in applying for a patent(专利权).
#30598
A
with whom
B
to whom
C
through which
D
for which
As we have planned, we’ll go to Beijing to attend her sister’s wedding party. We’ll also visit our mother school _______we go there.
#80232
A
unless
B
when
C
once
D
even if
___ we know some basic knowledge concerning AIDS, we can protect ourselves from being infected.
#33392
A
If only
B
Even if
C
So long as
D
Unless
— Whose money is this? — Just leave it it is. It doesn’t belong to us.
#31989
A
even if
B
which
C
where
D
so that
Although the old lady has a daughter and two sons ,______ live with her．
#33821
A
none of whom
B
neither of them
C
all of whom
D
none of them