gain strengthen competence deny expense initiative angle behave

（1）I truly envy him his

competence

competence

as a speaker.
（2）From another

angle

angle

，he can learn a lot from the failure.
（3）The overseas education he

gained

gained

has so far benefited him a lot.
（4）We have been told to

behave

behave

ourselves ever since our childhood.
（5）Oliver earned much money at the

expense

expense

of his health.
（6）The Belt and Road

initiative

initiative

is aimed at mutual economic development.
（7）Working out every day

strengthens

strengthens

our immune system.
（8）One cannot

deny

deny

the fact that hard work will pay off in time.