og上两题比较,please help 89. A recent national study of the public schools shows that there are now one microcomputer for every thirty-two pupils, four times as many than there were four years ago. (A)there are now one microcomputer for every thirty-two pupils, four times as many than there were (B)there is now one microcomputer for every thirty-two pupils, four times as many than there were (C)there is now one microcomputer for every thirty-two pupils, four times as many as there were (D)every thirty-two pupils now have one microcomputer, four times as many than there were (E)every thirty-two pupils now has one microcomputer, four times as many as key:c why use “there were”,but not “there was” 92. Never before had taxpayers confronted so many changes at once as they had in the Tax Reform Act of 1986. (A)so many changes at once as they had in (B)at once as many changes as (C)at once as many changes that there were with (D)as many changes at once as they confronted in (E)so many changes at once that confronted them in key: d why use “confronted”比较结构不是应该补出助动词吗,为什么补实意动词?