trái nghĩa

1. Hotels usually raise their prices in high season.

• increase

• bump

• boost

• Decrease

He decided to postpone the trip until the following day.

• cancel

• suspend

• continue

• delay

Hotel prices in the major cities are high but not prohibitive.

• reasonable

• cheap

• expensive

• high

It was fascinating to see the elephants in their natural environment.

• manmade

• normal

• native

• scientific

They encountered serious problems when two members of the expedition were injured.

• severe

• difficult

• dangerous

• unimportant

Polluted water sources are a hazard to wildlife.

• security

• danger

• harmlessness

• safety

The case for better public transport is unanswerable.

• reliable

• believable

• answerable

• questionable

People should keep away from the radioactive waste.

• get along with

• keep in touch with

• put up with

• stay close to

Several outbreaks of infection have been traced to contaminated food.

• clean

• dirty

• polluted

• poisonous

Eat as many fresh products as possible rather than relying on tinned and foods.

• learning

• counting

• liberating

• depending