【求助大神】OG1594关于省略对比问题

（OG1594）Heating-oil prices are expected to be higher this year than last because refiners are paying about $5 a barrel more for crude oil than they were last year.

A Heating-oil prices are expected to be higher this year than last because refiners are paying about $5 a barrel more for crude oil than they were

B Heating-oil prices are expected to risehigher this year over last because refiners pay about $5 a barrel for crude oilmore than they did

C Expectations are for heating-oil prices tobe higher this year than last year's because refiners are paying about $5 abarrel for crude oil more than they did

D It is the expectation that heating-oilprices will be higher for this year over last because refiners are paying about$5 a barrel more for crude oil now than what they were

E It is expected that heating-oil prices will rise higher this year than last year's becauserefiners pay about $5 a barrel for crude oil more than they did

The sentence connects a comparison betweenthis year’s and last year’s heating-oil prices with a comparison between thisyear’s and last year’s crude-oil prices. The most efficient, parallelexpression of those comparisons is to use two comparative expressions, higher than and more than.

A. This sentence expresses the comparison insuccinct, parallel phrases.

E. Itis expected that… is wordy and awkward; the possessive last year’s does not parallel theadverbial phrase this year.

此处A选项的last，我感觉如果补全该句省略的话，不是变成Heating-oil prices are expected to be higher this year than (Heating-oil prices are expected to be higher )last (year).感觉last year和expected搭配各种不对，所以没选了。求大神赐教这句话正确的还原，我感觉按我的还原方式肯定是错的。起码应该还原成：heating-oil prices rose last year.但是我就是不知道还原的正确规则是怎样。