紧急求助语法题

yankljUID: 2158457

Experiments related to the sense of smell are more easily ( ) than those related to perception of color.
(A)setting them up        (B)to be set up     (C)set up    (D)sets up those
答案是c 为什么B不行呢?

Oceans continually lose by evaporation much of the river water()
(A)to constantly flow into them
(B)is constantly flowing into them
(C)constantly flows into them
(D)constantly flowing into them
答案是D  为什么选C不行呢?

rebeccavenUID: 2140456

１．be set up.被动态，more easily是修饰be.V的，你可能是混淆了be easy to do,bemore easily set up ,看清主干．
２．主干是Oceans lose by evaporation of water,flowing into them 是修饰water的，若Ｃ，则有２个谓语．　　还是主干的问题．

lignumvitaeUID: 207532

１是被动语态啊
２前面的lose是谓语，所以不能选C,否则就两个动词了；选D是省略了which is的从句