读趣百科

_____ no cause for alarm, the old man went back to his room.

In international matches, prestige is so important that the only thing that matters is to avoid _____.

_____ time, he’ll make a first-class tennis player.

This missile is designed so that once _____ nothing can be done to retrieve it.

He resented _____ to wait. He expected the minister _____ him at once.