At least 300 million people are using QQ _________ by Ma Huateng to chat on line.
#45059
A
create
B
creates
C
creating
D
created
推荐题目
The dictionary mustn’t ________ from the library.
#44684
A
take away
B
taken away
C
are taken away
D
be taken away
No one knows how the huge rocks   and ___ without our modern machines eight hundred years ago.
#45042
A
are cut; moved
B
were cut; move
C
are cut; moving
D
were cut; moved