____ they ____ a cow yesterday?
#39339
A
Did; milked
B
Did; milk
C
Do; milked
D
Do; milk
推荐题目
Our classroom          by us every day!
#38468
A
is cleaning
B
has cleaned
C
must clean
D
is cleaned
—Where did you ______on vacation?    —I_____to Shanghai.
#40639
A
went, went.
B
go; went.
C
go;go.
D
went;go