Scientists are convinced _____the positive effect of laughter _____physical and mental health．
#26778
A
of ;at
B
by; in
C
of ; on
D
on ;at
推荐题目
We met an old friend in New York ____our expectation. She waved at us _____ the street when she saw us.
#25886
A
with; in
B
out of; next to
C
in; out of
D
beyond; from across
After her son gave his life for the country, Sally was well provided____________.
#28964
A
with
B
for
C
on
D
/
All efforts of cloning an animal will be ________ if there is not enough diversity in the group to overcome illness.
#26496
A
in need
B
in place
C
in vain
D
in case
Do you know that Britain trades many European countries furs and skins?
#25682
A
in; of
B
with; in
C
with; of
D
in; with
The composition is well written ___________ a few spelling mistakes．
#26504
A
beside
B
besides
C
except
D
except for