问题补充:
—Please go and say hello to your aunt.She’s in the living room now.
—She has arrived! But when she ?
A. will; arrive
B. did; arrive
C. had; arrived
D. has; arrived
答案:
A. will; arrive
(答案→)B. did; arrive
C. had; arrived
D. has; arrived
解析:可联系答.案.网客服索取。