At least 300 million people are using QQ _____by Ma Huateng to chat on line.
#50488
A
create
B
creates
C
creating
D
created
推荐题目
 The workers were made ______ twelve hours a day.
#49956
A
work
B
to work
C
worked
D
working
Why not consider _________ Kunming next holiday? 
#49801
A
visit
B
visited
C
visiting
D
visits
I would like      e-mails to friends.
#50484
A
to write
B
write
C
writing
D
to write to