Question

Hundreds of species are declared to _____ in the coming century.

A．die away

B．die out

C．die down

D．die off

Answer 1

B

考查词组：A. die away渐渐消失，B. die out灭绝，C. die down平息，D. die off相继死去，句意是：数百种物种被宣布在下个世纪将灭绝。选B。