综合英语Our life becomes possible when food is converted into en

综合英语
Our life becomes possible when food is converted into energy
and the energy in turn ______ seek more food to grow and survive.
选择一项：
a. is used to
b. tended to
c. used to
d. is accustomed to
You are not _______ to be promoted unless you work hard.
选择一项：
a. likely
b. probably
c. improbable
d. possible
How can you ______ your time like that, Bob? You still have
your school work to do.
选择一项：
a. cut
b. kill
c. kick
d. do
He can remember so many words because he _____ a good, precise
memory.
选择一项：
a. trains
b. possesses
c. realizes
d. owes
We should all buy insurance _______ we need medical treatment
someday.
选择一项：
a. in case
b. so that
c. but
d. in order that
Please remember to ______ after finishing using the
projector.
选择一项：
a. turn on
b. shut up
c. switch off
d. close down
Car emissions are one ________ of the smog that hangs over
large cities.
选择一项：
a. resource
b. source
c. origin
d. root
The old man ______ worrying about his daughter’s safety since
she went traveling alone last month.
选择一项：
a. stopped
b. concentrated
c. mentioned
d. kept
The Russian military spent weeks searching for the _______ in
deep waters after the nuclear submarine exploded under the .
选择一项：
a. remainder
b. remains
c. ruins
d. wreckage
The director seems never content _______ our performance on the
stage.
选择一项：
a. at
b. with
c. about
d. in