— Are you good at either math ________ physics? — I'm not good at math, ________ do I do well in physics.
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A. or; or B. nor; nor C. nor; or D. or; nor
参考答案:
At school, some students are active ______ some are shy, yet..
At school, some students are active ______ some are shy, yet they can be good friends with one another.[ ]A. whileB. althoughC. so D. as