Question

【题目】After a while, they all came out of Peter's office.
A.At last
B.At once
C.A moment later

Answer 1

【答案】C
【解析】句意：过了一会，他们从Peter的办公室出来。after a while过了一会儿；at last最后；at once立刻；马上；a moment later过了一会儿。故选C。