Câu hỏi: Billy, come and give me a hand with cooking.

A. help

B. prepared

C. be busy

D. attempt

Câu 1: ______- is natural environment in which plant or animals live.

A. Ecology

B. Habitat

C. Extinction

D. Biodiversity

Câu 2: I missed the lessons yesterday so I have to___________ on work.

A. put up

B. catch up

C. work up

D. go with

Câu 3: Many plants and animal species are now on the _______ of extinction.

A. danger

B. border

C. margin

D. verge

Câu 4: The boy waved his hands to his mother, who was standing at the school gate, to ………….. her attention.

A. attract

B. pull

C. follow

D. tempt

Câu 5: The construction work was carried out by the local contractor.

A. continued

B. completed

C. done

D. run

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

A. Detective book

B. Comic

C. Biography

D. Cartoon