apply oneself to；raise one's spirits；end up；stand for；figure out；consist of；get ahead；react to

（1）The reason behind the workers' protest is that since April people in authority haven't

reacted to

reacted to

their demand in increasing their wages.
（2）John passes the exam with ease because he

has applied himself to

has applied himself to

his study for the past year.
（3）Unless he breaks his habit of speeding，he

will end up

will end up

in a traffic accident sooner or later.
（4）Listening is an active，not a passive behaviour，which

consists of

consists of

hearing understanding and remembering.