大全7

7. A firm that specializes in the analysis of handwriting claims from a one-page writing sample that it can assess more than three hundred personality traits, including enthusiasm, imagination, and ambition.

(A) from a one-page writing sample that it can assess

(B) from a one-page writing sample it has the ability of assessing

(C) the ability, from a one-page writing sample, of assessing

(D) to be able, from a one-page writing sample, to assess（D）

(E) being able to assess, from a one-page writing sample,

我选A，我认为claim后面要跟that 从句。查了相关字典也没有查到claim to do的用法。

是否是A选项的it犯了指代不清的错误？可是在同一句子中it可优先指代主语 a firm，这个法则在到底在哪种情况下适用？虽然我知道it是不能单独出现的－－－－

又晕

Choice D, the best answer, correctly uses an infinitive to connect the verb claims with the firm’s assertion: claims to be able... to assess.... All of the other choices use ungrammatical or unclear constructions after claims. Choices A and B present clauses that should be introduced by “claims that.” In A, placing that after sample rather than after claims produces the unintended statement that the claim itself is made on the basis of a single one-page writing sample. Also, in B, the ability of assessing is unidiomatic. Choice C repeats this second fault and uses the unidiomatic claims the ability. Choice E uses the ungrammatical claims being able to assess.