how in cases....

groundkeeper · 发表于 2004-5-8 21:20:00

9908,13

------in cases where special oxidants are used, fires are the result of a frel rapidly combining with the oxygen in the air.

(A) There are

(B) Even thorgh

(C)How

(D) Except

answer is C, 不通..求教the structre of the sentence....does it omit "fires are"in cases??

waterfrog · 发表于 2004-5-9 01:09:00

有frel这个单词的么？楼主是不是抄错了？

groundkeeper · 发表于 2004-5-9 10:48:00

sorry!,fires are the result of a fuel rapidly combining with the oxygen in the air......

and thanks waterfrog!!!

waterfrog · 发表于 2004-5-9 11:02:00

我觉得答案应该是D吧

siepo · 发表于 2004-5-9 13:17:00

整句句子2个动词，1个连词，所以不能再选连词了。

答案中只有D没有连词，所以选D。

sfwilliam · 发表于 2004-5-10 10:10:00

我觉得是B。

所属分类: TOEFL / IELTS