Many people think that it is ______ making such an experiment.
#18907
A
valuable
B
worthwhile
C
convenient
D
important
推荐题目
From his ____ look, I knew that the questions during the interview were ______.
#18489
A
puzzling; puzzled
B
puzzled; puzzling
C
puzzling; puzzling
D
puzzled; puzzled
 Medicine should not be kept where it is _______ to children. 
#17720
A
addicted
B
accessible
C
attractive
D
aggressive
Everybody said it was an ideal marriage; no one had ever known ______ couple.
#19665
A
the happier
B
a happier
C
a happy
D
the happiest