Yesterday I went to buy a computer .There were so many models for us _____ in the shop that I was at a loss which to buy.
A.to be chosen B.to choose C.to choose from D.for choosing
答案为C
there be 句型后的非谓语结构不是根据非谓语动词与there be 后名词之间的关系判断的吗?那么model 与 choose 的关系就是被动;了.而这边的答案却没有体现这点.难道是因为多了个"for us" 其次,choose 后面为什么一定要加from
答：C
译：昨天我去买电脑.店里有那么多的型号供我们（从中)选择,以致于我都不知道买哪一种型号了.
析：There is sth.to do/ to be done,不定式作定语,主被动都可以.如不定式有自己的逻辑主语,（用for 引出）,for sb.to do ,则只用主动式,所以排除A.
这一题主要考choose sth.和choose from sth.(复数）的区别.前者choose为及物动词,意为选中,如We chose him.She chose a cheaper one.后者choose为不及物动词,意为“选择”,后而介词from ...表示选择的范围.to choose (one) from the five .从五个中选择（出一个来）.
技巧：这种题,答案多为choose from,因为汉语常说：店中有很多型号的电脑可供选择.而同学们平时记的Choose的意思,就是“选择”.汉语中省略不说：确“从.中”的.