You can never be ________ when crossing the street. 
#19693
A
very careful
B
too careful
C
carefully enough
D
enough careful
推荐题目
 I think whoever makes____ contributions to the company than the others should get____income.
#20593
A
greater; a highest
B
more greater; a higher
C
greater; the highest
D
more greater; the higher
The student became ______ the danger of smoking and decided to give it up.
#18855
A
aware
B
aware that
C
aware of
D
aware with