We can do a lot to stay healthy. __________, we should eat a balanced(平衡的) diet.
#77891
A
At a time
B
In fact
C
First of all
D
All together
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Thomas _____ a soldier, for he is much too short.
#63130
A
needn’t be
B
should be
C
may be
D
can’t be
Johnny, you _________play with the knife, you_________ hurt yourself. 
#76255
A
won’t; can’t
B
mustn’t; may
C
shouldn’t; must
D
can’t; shouldn’t