The author mentions the sources of energy such as wind, steam, petrol in the first paragraph to________.
Giải bởi Vietjack
Chọn đáp án B
The Chief of police, ________work is very important, takes care of the public safety.
The day their first child was born, the new parents were ________ with joy.
Older people rarely approve ________ habits of the youngr generation.
Would you like to go …………………..…………. with us this Sunday? (picnic)
He didn't succeed in convincing his boss to give him a pay rise. (failed)
The …………………..…………. of knowledge for the young is a policy to follow. (rich)
