The students will stay _____ home and send their homework to the teacher _____ email . 
#50881
A
at , by
B
at , at
C
by, by
D
by , at
推荐题目
Thanks a lot for _______ me. 
#47214
A
invite
B
invite
C
inviting
D
inviting
The young man wears glasses because he spends too much time _____ the computer.
#48396
A
to work, in
B
working, on
C
to work, on
D
working, in
I don’t want to go. Besides, I’m too tired.
#46378
A
Therefore
B
In addition
C
However
D
Except