to make/receive/make a ____ ____
phone call
to carry out/do _____ on/into st
research
connected with political revolution/ involving a great or complete change, eg. a _____ idea
revolutionary
to ____ if/wether/why
wonder
the ____ of st: nguyên nhân
cause
make an ____ to do st/ in an attempt to do: cố gắng, nỗ lực
attempt
to make ____: tiến bộ
progress
