Stamps are usually used _____letters.
#44752
A
to sending
B
to send
C
for send
D
for sent
推荐题目
---Why is the classroom so dirty? --- Sorry, sir. It ______ yesterday. We forgot to do it.
#44831
A
doesn’t clean
B
didn’t clean
C
isn’t cleaned
D
wasn’t cleaned
The river smells terrible. People_______ dirty things into it .
#44850
A
must stop to throw
B
must stop from throwing
C
must be stopped to throw
D
must be stopped from throwing
Those people without children ________good care of by the government there.
#44844
A
are taking
B
are taken
C
have taken
D
were taking
It’s said that ______of the water around the world___ polluted.
#44439
A
two third , has
B
two thirds, have
C
two third, are
D
two thirds, is