No one knew precisely what would happen to human being in space.

She was unhappy that she lost contact with a lot of her old friends when she went abroad to study.

They are launching a campaign to promote awareness of environmental issues.

We have to employ extra staff to deal with the increased workload.

We arrived home safe and sound.

She denied having stolen his mother's money.

He revealed his intentions of leaving the company to the manager during the office dinner party.

Heavy rain makes driving on the road very difficult.

They've always encouraged me in everything I've wanted to do.

The government is being widely criticized in the media for falling to limit air pollution.

More people are now employed in service industries than in manufacturing.

Slang can be defined as a set of lexical, grammatical, and phonological regularities used in informal speech.

Our well- trained staff are always courteous to customers.

If we use robots instead of humans, many people may be out of work.

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

School uniform is compulsory in most of Vietnamese school.