I like getting up very early in summer. The morning air is so good _________.  

The ________ look on her face suggested that she _________ her manager’s idea.

______ by a greater demand for vegetables,farmers have built more green houses.

When asked why he went there,he said he was sent there___for a space flight.

“Things_______never come again!”I couldn’t help talking to myself.

As the light turned green,I stood for a moment,not_______,and asked myself what I was going to do.

Jenny hopes that Mr.Smith will suggest a good way to have her written English _______ in a short period.

He is very popular among his students as he always tries to make them_______in his lectures.

—Can I smoke here?
—Sorry.We don’t allow_______here.

____that she didn’t do a good job,I don’t think I am abler than her.