-- What can trees do _________ us ?--- They can _________ harmful gases and produce oxygen .
#58609
A
helping , take in
B
to help , take in
C
helping , take out
D
to help , take care
推荐题目
The snow made them ________ cold, so they decided to make a fire _________ warm.
#55092
A
feel, to keep
B
to feel, keep
C
feel, keep
D
to feel, to keep
—I’m sure I will get good grades (成绩) in this exam.—If so, I believe your parents will ______ the result.
#59463
A
be satisfied with
B
be angry about
C
be bord of
D
be worried about
The strategies that Tom came up with worked out fine.
#62131
A
think up
B
thought up
C
thought out
D
came out
—Let’s visit the sick children in hospital and ______.—OK, let’s go.
#52124
A
put them up
B
set them up
C
fix them up
D
cheer them up