In fact fuels we burn and plant food we eat ________ their chemical energy in the form of heat.
#64104
A
give in
B
give off
C
give away
D
give up
推荐题目
Hang your wet towel over the chair to ________ it ________.
#72281
A
carry; out
B
dry; out
C
dry; up
D
put; up
The stamps were __________ according to their styles and features.
#68867
A
found out
B
turned out
C
put out
D
sorted out
As soon as the children were _____, their mother got them out of bed and into the bathroom.
#83736
A
woke
B
waken
C
wake
D
awake
Although the situation was tough during the economic crisis now things are beginning to ________.
#72789
A
look up
B
keep up
C
set up
D
build up
At night, plants _________carbon dioxide and at the same time _________oxygen. So, we may put some in our bedrooms to purify the air.
#64170
A
take in, give out
B
take up, give off
C
take in, give in
D
take off, give up