After decades of effort, the city is still trying to _____ how to stop smoking in public places. 
#66993
A
try out
B
let out
C
figure out
D
run out
推荐题目
Every means has been _______. No one is effective.
#76967
A
trying out
B
tried out
C
trying in
D
tried on
He has a stomachache now. Maybe the sea food __ him.
#68371
A
disagrees to
B
doesn’t fit for
C
isn’t fit
D
disagrees with
The smell of these flowers _______ the memory of my childhood.
#74242
A
calls for
B
calls in
C
calls off
D
calls up