问题
It was ________ he came back from Africa that year ________ he met the girl he would like to marry.[ ]
A:when; then
B:not; until
C:not until; that
D:only; when
B:not; until
C:not until; that
D:only; when
正确答案是：
同类题型
We need _____ whether the flowers need _____.[ ]
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Can I help you，Madame?—Oh，thanks，but I can ______ it myself.