What         you         at this time yesterday?
#41896
A
do, do
B
have, done
C
were, doing
D
are, doing
推荐题目
The ________ boy ___________ the fire on May 10th.
#41987
A
18 years old, put out
B
18-year-old, put out
C
18 years old, putted out
D
18-year-old, putted out
- So far, our country _____ a lot. - Yes, I agree with you.
#41794
A
change
B
changed
C
changes
D
has changed
We __________a great time at the party last night. 
#39300
A
have
B
has
C
had
D
are having