In the original test，all the animals in a test group are given a substance _______ half of them die
A、unlessB
本题考查词义辨析。until：直到。符合句意，表示givenasubstance持续到halfofthemdie。
Whathehaddoneis_______
Thatisthehouse_______youcanenjoythescenery.
Amongthefollowingwriters()isgenerallyregardedastheforerunnerofthe20th-century“stream-of-consciousness”novelsandthefounderofpsychologicalrealism.
In1920,()publishedhisfirstnovelThisSideofParadisewhichwas,tosomeextent,hisownstory.
Theteachertoldusthefact_______.
