请教大全647

1.        *Since 1986 when the Department of Labor began to allow investment officers’ fees to be based on how the funds they manage perform, several corporations began paying their investment advisers a small basic fee, with a contract promising higher fees if the managers perform well.

(A) investment officers’ fees to be based on how the funds they manage perform, several corporations began

(B) investment officers’ fees to be based on the performance of the funds they manage, several corporations began

(C) that fees of investment officers be based on how the funds they manage perform, several corporations have begun

(D) fees of investment officers to be based on the performance of the funds they manage, several corporations have begun（D）

(E) that investment officers’ fees be based on the performance of the funds they manage, several corporations began

想问选D比C好在那里?

如何运行 和 成绩或者表现 不是一回事。

allow that 是承认的意思。

OG explanation:

The clause beginning Since 1986... indicates that the practice described in the second clause continued for some period of time after it began. Choice D, the best answer, supplies the present perfect have begun, which conveys this continuity; D also uses a construction that is appropriate when “allow” means “permit”: allow... to be based on. Choices A, B, and E incorrectly use the past tense began rather than the present perfect; furthermore, in each of these options, they has no referent, since officers is a possessive modifier of fees. Choices A and C include the awkward phrase based on how the funds they manage perform. Choices C and E incorrectly use allow that...fees be based.

begin竟然还可以使用完成时have begun代表持续一段时间？从1986年以来一直不断的begin?

ETS使用的语法真是高深莫测！太神秘了！

allow后面不能接that从句虚拟语气？

同问。allow不跟that吗？

allow that 承认……

allow sb. to do  允许某人做……

恰恰相反，我觉得C更好，D压根儿就是错的：

(D) fees of investment officers to be based on the performance of the funds they manage, several corporations have begun

manage既可能修饰performance又可能修饰funds