___ study in No.4 Middle School? 
#57141
A
Did you used to
B
Did you use to
C
Do you used to
D
Do you use to
推荐题目
Do you enjoy________ on the weekend?
#53993
A
read
B
to read
C
reads
D
reading
Tina ______ her mother. They are both tall and like to help others.
#59124
A
looks at
B
looks after
C
takes after
D
gives out
It was a difficult time, but we never ________ hope.
#63684
A
put up
B
gave up
C
picked up
D
used up