John is the only one of the students in the class who never _____ a mistake even when it is pointed out to him.
At last she made herself ______ by drawing a picture.
I was about to go shopping _______ the telephone rang.
The apartment caught fire last night. Fortunately, most of the people there _______ escape.
This is _______ I have come to Yuanyang.
They were ______ little children that they didn’t know what to do.