About six months later,the letter they were looking forward to ________at last.
Soon after _____ home, it began to rain.
The situation was very dangerous; the enemies were attacking us _____.
The girl’s sudden death _____ the police’s _____ this matter.
With the crop’s production _____ rapidly, food price is _____ year by year.
We don’t doubt _____ he can do a good job.