Little Tommy was reluctant to tell the schoolmaster__________he had done the day before.

Mr. Zhang looks so sad. Shall we go and find what happened ____ __ him—- OK. Let’s go.

____ she is not so cheerful _____ she used to be?[ ]

One way for students to prevent H7N9 flu virus is to openthe windows of the classroom to allow the air to ________.

– Do you like _____here—Oh, yes, the air, the weather and theway of life. Everything is so nice.