Microblogs experienced rapid growth in 2013 in China, with its operators, users and visitors     several times. 
#89263
A
increase
B
increased
C
increasing
D
to increase
推荐题目
 _________ the deaf children, the young lady has little time to care for her own daughter.
#94433
A
Devoted to teach
B
Devoted herself to teach
C
Devoting herself to teaching
D
Devoting to teach
______ their service, the workers of the hotel are active in learning English.
#91829
A
Improving
B
To improve
C
Improve
D
Having improved