Question

【题目】I know nothing about the accident _______ you told me.
A.until
B.when
C.since
D.if

Answer 1

【答案】A
【解析】句意：直到他告诉我，我才知道这个事故。 A. until 直到……才;B. When当……时候;C. since 自从;D. If如果。根据句意，故答案选A。