The melon the Smiths served at dinner would have tasted ________ if it had been put in the fridge for a little while．

A．good

B．better

C．best

D．well

He was told that it would be at least three more months ________ he could receover and retum to work．

A．when

B．before

C．since

D．that

－What do you think of the performance today?

－Great! ________ But a musical genius could perform so successfully．

A．All

B．None

C．Anybody

D．Everybody

－Where is my dictionary? I remember I put it here yesterday．

－You ________ it in the wrong place．

A．must put

B．should have put

C．might put

D．might have put

Many people have come to realize that they ahould 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．