Intheoriginaltest，alltheanimalsinatestgrouparegivenasubstance_______halfofthemdie
A、unlessB
本题考查词义辨析。 until：直到。符合句意，表示 given a substance 持续到 half of them die 。
TheeffectofDarwinistideaof“survivalofthefittest”wasshatteringin()’sfictionalworldofjungle,where“killortobekilled”wasthelaw.
Opposition leaders will be watching carefully to see how the Prime Minister ________ the crisis.
That is the house _______ you can enjoy the scenery.
WilliamFaulknersetmostofhisworksintheAmerican(),withhisemphasisonthe()subjectsandconsciousness.
William Faulkner set most of his works in the American( ),with his emphasis on the( )subjects and consciousness.
