If you intend to arouse students’ interest in your project, you’d better ______ your teaching methods more wisely.
______ of the students who took part in the military training is 450.
At the end of last class, the English teacher requested that the homework _____ this morning.
Although they had been away for many years, they _____each other as soon as they met.
—What did he say?—He asked _____ for the book.
It was the first time that Mary _____a play , so she felt a little nervous.