[問題] OG198, GWD1-32 比較

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og 198
Although Napoleon’s army entered Russia with far more supplies than they had in their previous campaigns, it had provisions for only twenty-four days.
(A) they had in their previous campaigns
(B) their previous campaigns had had
(C) they had for any previous campaign
(D) in their previous campaigns
(E) for any previous campaign

ANS =E

GWD 1-32
To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility.
A. have to know a great deal more than now about the social and economic
B. have to know a great deal more than they do now about the social and economical
C. would have to know a great deal more than they do now about the social and economical
D. would have to know a great deal more than they do now about the social and economic
E. would have to know a great deal more than now about the social and economical

ANS=D


小弟知道兩題其他選項的問題
但卻想不出為何在OG 198 中 than 可以當關代
代替they had had 但gwd 中的a選項就不能代
或是說a中如果有would 就可以了嗎
可以請大家指點一下嗎

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