题目
-Why didn't you go to play football with us yesterday afternoon？
-I _____my mother with the housework then．（ ）
-I _____my mother with the housework then．（ ）
A.
helped
B.
was helping
C.
had helped
D.
have been helping
知识点：Unit 2 She was thinking about her cat.章节：Module 7 A famous story