become aware of；be home to；up and down；if necessary；make up；in favor of；find out；team up with
（1）The operator is very much

in favor of

in favor of

workers' proposal on the conference.
（2）He just desires a steady life，so he prefers not

to team up with

to team up with

any other fellows.
（3）Don't disturb him now，who must

find out

find out

the truth of this incident.
（4）Head teacher told us that we would go to the grassland by taking his car

if necessary

if necessary

.
（5）The boy

made up

made up

a story that his waist was bitten by a snake，which made us frightened.
（6）I am looking

up and down

up and down

for my wallet which was lost when I enjoyed the scenery.
（7）It is certain that one day in the future you

will become aware of

will become aware of

all your mistakes.
（8）The Tibetan mountain areas

are home to

are home to

antelope and other rare animals.