Câu hỏi: Due to an increase in population and the use of nearby land for farming, there are toxic levels of chemicals in the water.

A. fall

B. lowness

C. shortage

D. illness

Câu 1: You can slide the front seats forward if necessary.

A. back

B. beside

C. above

D. under

Câu 2: Visitors, especially children, can go there to learn how to recognize the different species of animals and plants.

A. pure

B. same

C. alike

D. whole

Câu 3: He revealed his intentions of leaving the company to the manager during the office dinner party.

A. disclosed

B. concealed

C. misled

D. influenced

Câu 4: If any employee knowingly breaks the terms of this contract, he will be dismissed immediately.

A. coincidentally

B. deliberately

C. instinctively

D. accidentally

Câu 5: Most of the guests at the dinner party chose to dress elegantly, but one man wore jeans and a T-shirt, he was later identified as a high school teacher.

A. unsophisticatedly

B. decently

C. gaudily

D. gracefully

Câu 6: This national park is special because it has plants and animals from both tropical and temperate zones.

A. warm

B. pole

C. cool

D. wet