-How long ________inBeijing?-For just the weekend. I'II be back for work next Monday.
It was not until near the end of the letter________she mentioned her own plan.
Only by increasing the number of doctors by 50 percent________properly in this hospital.
At no time________the rules of the game.It was unfair to punish them.
Only when he apologizes for his rudeness ________ to him again.
“Never for a second,”the boy says,“________that my father would come to my rescue.”