11. There are several ways to build solid walls using just mud or clay, but the most extensively used method has been the forming of bricks out of mud or clay, and, after some preliminary air drying or sun drying, they are laid in the wall in mud mortar. (A) the forming of bricks out of mud or clay, and,0 after some preliminary air drying or sun drying, they are laid (B) forming the mud or clay into bricks, and, after some preliminary air drying or sun drying, to lay them (C) having bricks formed from mud or clay, and, after some preliminary air drying or sun drying, they were laid (D) to form the mud or clay into bricks, and, after some preliminary air drying or sun drying, to lay them (E) that bricks were formed from mud or clay, which, after some preliminary air drying or sun drying, were laid 答案d 的and前面为啥能加逗号？？难道不是只有前后是句子时才有逗号的么？？ 。。。感觉我问得很弱智。。。
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发表于 2012-3-26 21:51:23
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楼主
发表于 2012-3-27 19:49:34
