Question

Tom was surprised that most of the guests ______ when he ______ at the party.

A. left; had arrived
B. left; arrived
C. had left; had arrived
D. had left; arrived

Answer 1

答案D
根据题意，Tom到达的时候，客人已经离开了，即“离开”的动作发生在“到达”之前，因此选D项。