Students should do everything they can __their study.
#50600
A
improve
B
to improve
C
improving
D
improved
推荐题目
My uncle’s dog was in the garden. I saw it _______ under the tree.
#48439
A
to lie
B
lying
C
lied
D
is lying
---I’m too busy________ to my family often. --- Why not call them instead ?
#50313
A
writing
B
write
C
written
D
to write
He used to _______in the sun ,but now he is used to ______at night.
#48575
A
read;read
B
reading;read
C
read; reading
D
reading; reading