Only when they came ___________. 
#81587
A
I left the office
B
did I leave the office
C
left I the office
D
I did leave the office
推荐题目
 No, I’m too busy right now. Please give me an hour, _____?
#79544
A
do you
B
don’t you
C
am I
D
OK
Little _______he was saving every penny he earned in order to go to a fashion school.
#80223
A
the parents did know
B
did the parents know
C
knew the parents
D
the parents knew
On the top of the hill ______.
#82506
A
does a temple stand
B
a temple stands there
C
stands a temple
D
a temple stands