.--I sent him a most interesting story book by mail this morning. --You____so; he's coming tomorrow morning.
Many people have come to realize that they should go on___balanced diet and make___room in their day for exercise.
A survey of the opinions of experts___that three hours of outdoor exercise a week___good for one’s health.
When asked why he went there,he said he was sent there___for a space flight.
Scientists are convinced___the positive effect of laughter___physical and mental health.()
Don’t take too much of the medicine;it does you more harm than good if you______.