新东方补充材料语法题目求助

nanjef2

我有几道语法题,不能确定正确答案. Please help.

1. Even though the state has spend ten years and seven million dollars planning a reservoir along the Ubi River, the project will have to be abandoned as a result of the river becoming so heavily polluted.
A. will have to be abandoned as a result of the river becoming so heavily polluted.
B. is to be abandoned because the river had received such heavy pollution.
C. had to be abandoned because the river had received such heavy pollution.
D. has to be abandoned because of the river and its heavy pollution.
E. must be abandoned because the river has become so heavily polluted.

My answer to this question is  E.

2. In feudal Europe, urban areas developed from clusters of house where peasants lived and commuted to farmlands in the countryside, unlike homeseading policies in the american West that required residency on the land itself in order to obtain eventual ownership.
A. In feudal Europe, urban areas developed from clusters of house where
peasants lived and commuted to farmlands in the countryside, unlike
homeseading policies

B. In feudal Europe, urban areas developed from clusters of house where
peasants lived and from which they  commuted to farmlands in the countryside, but in the American West homesteading policies

C. unlike feudal Europe where urban areas developed from clusters of houses where peasants lived and communted to farmlands in the countryside, the American West's homesteading policies

D unlike feudal Europe where urban areas developed from clusters of
houses where peasants lived and communted to farmlands in the
countryside,the homesteading policies of the American West

E. Rrban areas developed from clusters of
houses where peasants lived from which they communted to farmlands in the
countryside in feudal Europe, unlike the American West where homesteading policies

My answer to this question B

Anybody knows the offical correct answer to those question, pls let me know.

mbz

I believe that you made the correct choices. E,B