Any phone calls for me while I was away —Yes, _ Mr. Black called and said you would understand if you see __ _message he left.

Today there are more airplanes____ more people than ever before in the skies.

Who do you think runs the _______ in your class —Li Ming. .

In the face of all these difficulties, we’re not discouraged and ________ good spirits.[ ]

It is __________ to spend money onpreventing illnesses by promoting healthy living rather than spending on tryingto make people ___________ after they are ill