【题目】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

【答案】C
【解析】句意：直到那年他从非洲回来，他才遇到他想要结婚的女孩。本题考查强调结构的特殊形式：It is/was + not until … that从句。故C正确。