时间:2022-09-30 19:56:55
Susan _______out _______the door opened and in came three strangers.
A.was just to go; while
B.just went; as
C.was just going; as soon as
D.was just about to go; when
答案及解析: D
be about to do sth. when是一个固定的句型,表示正要做某事的时候突然发生另外一件事。when此处相当于并列连词,意为“on the point of doing sth.”,“be going to do sth.”等。