Câu hỏi: Although the staff did expand somewhat for the first century of its existence, the entire teaching staff consisted of the president and three or four tutors.

A. to and from

B. more or less

C. back and forth

D. side by side

Câu 1: Deserts often include _________ and rocky surface.

A. oil

B. water

C. sand

D. trees

Câu 2: A ___________ buffalo is the 22nd South East Asian Games Mascot because Vietnam is an agricultural country.

A. bronze

B. golden

C. silver

D. yellowish

Câu 3: ______- is natural environment in which plant or animals live.

A. Ecology

B. Habitat

C. Extinction

D. Biodiversity

Câu 4: Some of the participating schools have also decided to use green cleaning products, which are safer since they do not ……. harmful chemicals into the environment.

A. release

B. expose

C. compound

D. deplete

Câu 5: Do you know how many countries __________ part in the sporting event?

A. take

B. make

C. have

D. do

Câu 6: _____________ is a detailed description of a person's life.

A. Detective book

B. Comic

C. Biography

D. Cartoon