SPECIES BECOME EXTINCT OR ENDANGERED FOR _______ NUMBER OF REASONS, BUT_______ PRIMARY CAUSE IS THE DESTRUCTION OF HABITAT BY HUMAN ACTIVITIES

Câu 10 (TH):

Species become extinct or endangered for _______ number of reasons, but

_______ primary cause is the destruction of habitat by human activities.

A.

Ø / a

B.

a / the

C.

the / a

D.

Ø / Ø