1 think we'd better keep to the subject, ______we'll waste our time.
The teacher together with the students ________ discussing Reading Skills that ________ newly published in America.
So much progress ________ made in studies that he is sure to pass the coming examination.
The computer was used in teaching.As a result,not only ________,but students became more interested in the lessons.
Some of you may have finished Unit One.________,you can go on to Unit Two.
The young ________ the hope of our country.