求助gwd5里面的几道题

Only seven people this century have been killed by the great white shark, the man-eater of the movies—less than those killed by bee stings.

A.      movies—less than those

B.       movies—fewer than have been

C.      movies, which is less than those

D.      movies, a number lower than the people

E.       movies, fewer than the ones

答案是b,我选的e，有nn帮忙分析下么

A.      the sandpipers vanishing in the northeastern United States is a result of residential and industrial development and of changes in

B.       the bird itself is vanishing in the northeastern United States as a result of residential and industrial development and of changes in

C.      that the birds themselves are vanishing in the northeastern United States is due to residential and industrial development and changes to

D.      in the northeastern United States, sandpipers’ vanishing is due to residential and industrial development and to changes in

E.       in the northeastern United States, the sandpipers’ vanishing, a result of residential and industrial development and changing

这题答案是b，但是like结构在b似乎不对称吧？

A South American bird that forages for winged termites and other small insects while swinging upside down form the foliage of tall trees, the graveteiro belongs to the ovenbird family, a group of New World tropical birds that includes more than 230 species and that are represented in virtually every kind of habitat.

A.      graveteiro belongs to the ovenbird family, a group of New World
                tropical birds that includes more than 230 species and that are

B.       graveteiro belongs to the ovenbird family, a group of New World
                tropical birds that includes more than 230 species and  is

C.      graveteiro belongs to the ovenbird family, a group of New World
                tropical birds that include more than 230 species and  is

D.      graveteiro, which belongs to the ovenbird family, a group of New World tropical birds that includes more than 230 species and that are

E.       graveteiro, which belongs to the ovenbird family, a group of New World tropical birds that includes more than 230 species and is

还有这题，答案b，但是在b里,a group of New World
            tropical birds that includes more than 230 species and  is这句中的that指代的是a group，但是gmat语法中不是号称that不能跳跃修饰，只能指代其紧跟的名词吗？所以语法上that只能指birds吧？求大牛解惑