Câu hỏi: Deserts often include _________ and rocky surface.

A. oil

B. water

C. sand

D. trees

Câu 1: The computer has had an enormous _________ on the way we work.

A. alteration

B. change

C. impression

D. influence

Câu 2: Do you know how many countries __________ part in the sporting event?

A. take

B. make

C. have

D. do

Câu 3: Each nation has many people who voluntarily take care of others.

A. bring along

B. get on with

C. keep up with

D. look after

Câu 4: 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 5: Whenever problems come up, we discuss them frankly and find solutions quickly.

A. happen

B. encounter

C. arrive 

D. clean

Câu 6: When you see your teacher approaching you, a slight wave to attract his attention is appropriate.

A. coming nearer to

B. pointing at

C. looking up to

D. catching sight of