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
Tom sounds very much ________ in the job, but I'm not sure whether he can manage it.
#89216
A
interested
B
interesting
C
interestingly
D
interestedly
When asked why he went there, he said he was sent there _____for a space flight.
#95266
A
training
B
being trained
C
to have trained
D
to be trained
His new novel is ________his own experience when he was studying in Harvard University.
#96591
A
based in
B
basing in
C
basing on
D
based on
The new library, ______ last week, is very popular _____ the students.
#96838
A
opening, to
B
opened, with
C
open, to
D
having been opened, among
The boy wanted to ride his bicycle in the street, but his mother told him___________ .
#94476
A
not to
B
not to do
C
not do it
D
do not to