After decades of effort, the city is still trying to _____ how to ban smoking in public places.
When Fei Junlong and Nie Haisheng stepped out of the hall, all the cameras were on them, flashing quickly.
The athlete hurt his foot in the race.,he missed the champion.
When I passed the garden, I saw the boy under a tree, .
The visiting professor offered us some advice, of great help to our English learning.
He gave a lot of presents to his friends, but never one to me.