.Your son has kept _________ for two hours. You’d better ask him to have a rest.
#51260
A
study
B
studied
C
to study
D
studying
推荐题目
She wanted to find a cleaner room ______.
#48435
A
to live
B
to live in
C
living
D
lives in
       our duty        some housework at home
#48790
A
It’s ;to do
B
It’s ;doing
C
That’s;doing
D
That’s; to do