语法问题 BE在并列结果中是需要省略的,但为什么在be likely to and be unable to do中却不能省略,是否是因为是系表结构,此外还有什么情况下be不能省略呢? GWD题
GWD题 GWD题 Researchers hypothesize that granitic soil is the ideal construction material for the desert tortoise because it is not so hard that it makes burrowing difficult or so soft that it could cause tunnels to collapse.
- so hard that it makes burrowing difficult or so soft that it could cause
- hard enough to make burrowing difficult or soft enough as to cause
- so hard as to make burrowing difficult or soft enough so it causes
- as hard as to make burrowing difficult or as soft as to cause
- too hard, making burrowing difficult, nor too soft, so as to cause
我看见gwd的答案是A,但一个大牛说实际应该是D.因为it 在句子中指代的是granitic soil,而不是soilmakes difficult而是hard makes difficult. 各位有什么看法
[此贴子已经被作者于2007-12-23 3:18:01编辑过] |