问题补充:
.—Let’s back up. Where was I?
—.
A. You were in the kitchen.
B. You left your book at home.
C. You were having a rest.
D. You were talking about the cause.
答案:
A. You were in the kitchen.
B. You left your book at home.
C. You were having a rest.
(答案→)D. You were talking about the cause.
解析:可联系答.案.网客服索取。