(B)should be developed in order to provide a wide variety of services to an increasing amount
(C)should be developed in order to provide a wide variety of services to an increasing number
(D)be developed and provide a wide variety of services to an increasing number
(E)develop in order to provide a wide variety of services to an increasing number
答案是C,我是選D
想請教一下,為什麼D不對?!
我之前一直以為不能用should..所以把a,b,c都刪掉了..
D有平衡而且也沒什麼錯..所以選D
可以麻煩解釋一下嗎?
謝謝~
我的SC真的越寫題目越爛..
