题目内容
I ________ e-mails to my pen pal when Susan called me last night.
[ ]
A.was sending
B.am sending
C.sent
答案:A
练习册系列答案
相关题目
题目内容
I ________ e-mails to my pen pal when Susan called me last night.
A.was sending
B.am sending
C.sent