问题描述:
I was so tired that I ____ when I was sitting in the armchair reading.
A . dropped away
B . dropped out
C . dropped off
D . dropped through
哪个正确呢?请翻译,非常感谢
A . dropped away
B . dropped out
C . dropped off
D . dropped through
哪个正确呢?请翻译,非常感谢
问题解答:
我来补答展开全文阅读