Many people have come to realize that they should go on ___ balanced diet and make ___ room in their day for exercise.
A.a;/ B.the;a
C.the;the D./;a
A survey of the opinions of experts ___ that three hours of outdoor exercise a week ___ good for one’s health.
A.show;are B.shows;is
C.show;is D.shows;are
When asked why he went there,he said he was sent there ___ for a space flight.
A.training B.being trained
C.to have trained D.to be trained
Scientists are convinced ___ the positive effect of laughter ___ physical and mental health.
A.of;at B.by;in
C.of;on D.on;at
Don’t take too much of the medicine;it does you more harm than good if you ______.
A.do B.take
C.like D.have
—Will you join us in the game?
—Thank you,_______
A.but why not? B.but I’d rather not.
C.and I won’t. D.and I’ll join.
