It is no use _________ to persuade him ________ smoking because he has been addicted to it since he was young. 
#95554
A
trying, to quit
B
to try, to quit
C
to try, quit
D
trying, quit
推荐题目
 _______ on time, this medicine will be quite effective. 
#98430
A
Taking
B
Being taken
C
Taken
D
Having taken
The bad weather meant__________ the rocket launch or 48 hours,.
#98677
A
delaying
B
having delayed
C
to delay
D
to have delayed