急用的！！！！
Dring the examination we were supposed to stay in our seat, keep our in our work, ______to anyone. A but could not talk B rather than speak C and not speak D instead of speaking 为什么？请详细说明！
Dring the examination we were supposed to stay in our seat, keep our in our work, ______to anyone. A but could not talk B rather than speak C and not speak D instead of speaking 选c, 可以看作省略and (were not supposed to),因为要和前边的stay in our seat, keep our in our work平行，如选a，有could not,b,d 结构不对。
c be supposed to and not to
Dring 这次考试我们应该留下在我们的位子, 保留我们的工作, ______ 对anyone. A 但没有能谈B 而不是讲C 和不 讲D 而不是讲话
c
c.be supposed to表示应该的意思，后面加平行的并列结构，也加动词原形．
b
C
c,并列句，有更甚的意思，考试期间，当然要坐在座位上，并且不的交头接耳拉
