(D) every thirty-two pupils now have one microcomputer

(E) every thirty-two pupils now has one microcomputer

单从主谓一致的角度，哪个对啊？？

供参考:

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

Choices A, B, and C appropriately use the construction "one X for every thirty-two Y's" to describe the ratio of computers to pupils, but only C, the best answer, is error-free. In A, are does not agree with the subject, one microcomputer; furthermore, in A, B, and D, than is used where as is required. Choices D and E reorder and garble the "one X ..." construction, making four times as many refer illogically to pupils.

另例: Three out of every four automobile owners in the LACE>United StatesLACE> also own a bicycle.