ChaseDream
搜索
返回列表 发新帖
查看: 975|回复: 2
打印 上一主题 下一主题

请教

[复制链接]
楼主
发表于 2008-8-15 17:11:00 | 只看该作者

请教

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.

 

  1. the forming of bricks out of mud or clay, and, after some preliminary air drying or sun drying, they are laid

  2. forming the mud or clay into bricks, and, after some preliminary air drying or sun drying, to lay them

  3. having bricks formed from mud or clay, and after some preliminary air drying or sun drying , they were laid

  4. to form the mud or clay into bricks, and , after some preliminary air drying or sun drying, to lay them

  5. that bricks were formed from mud or clay, which, after some preliminary airy drying or sun drying, were laid

 答案说:

D the best

The method to…       and前后平行

可是不明白 has been to form 这个结构, has been 这里是什么意思, 做什么成分?

沙发
发表于 2008-8-15 17:23:00 | 只看该作者
现在完成时的助动词啊
板凳
发表于 2008-8-15 18:12:00 | 只看该作者
不明白,我觉得后面应该跟一个名词阿,
您需要登录后才可以回帖 登录 | 立即注册

Mark一下! 看一下! 顶楼主! 感谢分享! 快速回复:

IESE MBA
近期活动

正在浏览此版块的会员 ()

手机版|ChaseDream|GMT+8, 2024-11-12 02:49
京公网安备11010202008513号 京ICP证101109号 京ICP备12012021号

ChaseDream 论坛

© 2003-2023 ChaseDream.com. All Rights Reserved.

返回顶部