Rules are helpful to us, __________ we have to follow them.
A. so B. but C. or D. because
答案
A 我们可用“逻辑推理法”解答本题。so意为“因此”，表示结果；but意为“但是”，表示转折；or意为“或者；否则”，表示选择或相对的结果；because意为“因为”，表示原因。由前文句意“规则对我们是有帮助的”可推知后文句意为“因此我们必须遵守它们”。故选A。
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
该作品由: 用户215917488分享上传
