It is obvious that water is to be _____to the development of life.
#59560
A
gentle
B
fundamental
C
harmful
D
fierce
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The illness of her son is so ______ that she cannot go to sleep at night.
#19152
A
satisfying
B
worrying
C
surprising
D
puzzling
--How is Tom, do you know ?--____.
#20309
A
He is very clever.
B
He’s right
C
He is much better
D
He is a doctor
 We couldn’t have picked ______ day for the picnic-it rained nonstop.
#20675
A
a worse
B
a worst
C
the worse
D
the worst