to make ____: tiến bộ
progress
___ an attempt to do st
in
connected with political revolution/ involving a great or complete change, eg. a _____ idea
revolutionary
make an ____ to do st/ in an attempt to do: cố gắng, nỗ lực
attempt
a thing that you are given because you have done something good, worked hard, etc.. A ____ for st
reward
a prize such as money, etc. for something that somebody has done
award
a person who watches somebody/something: o____
observer
to ____ if/wether/why
wonder
to carry out/do _____ on/into st
research
the ____ of st: nguyên nhân
cause
made or produced to copy something natural; not real
artificial
to do/perform/ carry out an ______ on st
experiment
as a matter of ___; face the ___: sự thật
fact
to make/receive/make a ____ ____
phone call
to come to/reach the _____ that
conclusion
____ average
on