The Greens stayed in Beijing for a week, during ______ time they visited places of interest here guided by me.
Mr White is opposed to repairing the old building, and that’s ______ I don’t agree.
____ a peasant boy of no more than seventeen, who was badly wounded.
--- Do you often feel anxious and uncomfortable? --- No, but I __________.
Those _____ cannot answer all three riddles will be condemned to death.
As is known to us all, success usually results from diligence while laziness and copying others _____ can lead to losses and failure.