Peter spent half a day fishing by the river,______he didn't catch anything.
A．so B．or C．for D．but
答案
D
【解析】
句意：彼得在河边钓了半天鱼，但什么也没钓到。A. so因此；B. or或者，否则；C. for为了；D. but但是。根据句意可知，前后句表示转折关系。故答案为D。
Ted has ten soccer balls, _____he doesn't play them．
A．and B．with C．but D．of
Don’t fight in class __________don’t run in the hallways．
A．or B．so C．but D．and
Susan is good-looking，__________she’s a little hit short．
A．so B．with C．or D．but
Jane, please turn off the lights ______ you leave the classroom.
A．after B．before C．until D．but
--Hurry up! The bus is coming．
--Wait a minute．Don't cross the street ________ the traffic lights are green．
A．until B．after C．while D．since
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