In the original test，all the animals in a test group are given a substance _______ half of them die
B
本题考查词义辨析。until：直到。符合句意，表示givenasubstance持续到halfofthemdie。
Mark Twain employed an unpretentious style of( )in his novels which is best described as “vernacular ”.
InDeathintheAfternoon()presentshisphilosophyaboutlifeanddeaththroughthedepictionofthebullfightasakindofmicrocosmictragedy.
Amongthefollowingwriters()isgenerallyregardedastheforerunnerofthe20th-century“stream-of-consciousness”novelsandthefounderofpsychologicalrealism.
ThechildhoodofTomSawyerandHuckFinnintheMississippiisarecordofavanishedwayoflifeinthe()Mississippivalley
Hemingway’s “Indian Camp ” is one of the fourteen short stories collected under the title of( ).This title is very ironic because there is no peace at all in the stories.