—Must we keep the window _______ all the time? —No, you don’t have to. 
#54465
A
opening
B
opened
C
to open
D
Open
推荐题目
There__________ large areas of rice fields in our hometown.
#53010
A
used to have
B
used to be
C
was used to having
D
was used to being
I remembered ________ you in the street last year.
#59703
A
meet
B
meet with
C
to meet
D
meeting
I hope our dreams             .
#55233
A
comes true
B
come true
C
to come true
D
coming true