____ they ____ a cow yesterday?
#39339
A
Did; milked
B
Did; milk
C
Do; milked
D
Do; milk
推荐题目
 The teacher        class when I      the classroom at ten o’clock yesterday morning.
#36571
A
was having, got to
B
had, got to
C
had, was getting to
D
was have, got to
Mum, may I watch TV for a while ? –of course, if your work _____.
#37289
A
is finished
B
finishes
C
have been finished
D
will be finished
Great changes______ in the city since1970.
#37282
A
have been taken place
B
have taken place.
C
has taken place
D
took place