It is important to keep ______ in an emergency (紧急情况).
#18162
A
quiet
B
calm
C
silent
D
still
推荐题目
The man has little education but he has a lot of _____ experience.
#19697
A
optimistic
B
practical
C
acceptable
D
talented
 He was ______ about his ______ son, who is always skipping classes.
#18824
A
worried, worried
B
worrying, worried
C
worried, worrying
D
worrying, worrying
Many people think that it is ______ making such an experiment.
#18907
A
valuable
B
worthwhile
C
convenient
D
important