Upon graduation he asked to be sent to _______________.
__ is known to everybody, the moon travels round the earth every month.
---I drove to Zhuhai for the air show last week.---Is that ___ you had a few days off?
What the doctor really doubts is ___ my mother will recover from the serious disease soon.
The number of the employees has grown from 1000 to 1200.This means it has increased ___20 percent.
She was wandering what to do __ a policeman came and asked if he could help.