Why pleasant smells do not reduce pain in man is a question still _______ by scientists.
#97245
A
answered
B
being answered
C
to be answered
D
that answered
推荐题目
Has the boy who was made use of ____ realized his mistakes?
#89386
A
stealing
B
to steal
C
for stealing
D
stolen
The supermarket      next month will be the biggest one in the city.
#91582
A
completed
B
being completed
C
to be completed
D
having been completed
____your own needs and styles of communication is as important as learning to convey your affection and emotions.
#88390
A
Understanding
B
To be understood
C
Being understood
D
Having understood