OG10--63

63. Health officials estimate that 35 million Africans are in danger of contracting trypanosomiasis, or "African

sleeping sickness," a parasitic disease spread by the bites of tsetse flies.

(A) are in danger of contracting

(B) are in danger to contract

(C) have a danger of contracting

(D) are endangered by contraction

(E) have a danger that they will contract

danger must be followed by of, not by an infinitive. The phrase have a danger is unidiomatic in C. In D, the phrase

by contraction trypanosomiasis requires of after contraction; even if this correction were made, though, the passive

construction in D would be unnecessarily wordy and also imprecise, because it is the disease more than the act of

contracting it that poses the danger. In E, have a danger is again unidiomatic, and the to that clause following the

phrase is, within the structure of the sentence, ungrammatical and awkward.

我怎么觉得E选项的that从句没有问题呢？请教.........