THE SENTENCE IS WRITTEN IN PAST TENSE, AND THE■ AN ATTEMPT AT DEVELOPMENT OF SUPPORTING DETAILS,WHICH IS ONLY PARTLY REALIZEDVERB NEEDS TO BE SINGULAR TO AGREE WITH THE SIN-GULAR SUBJECT OF THE SENTENCE,PERCENT

37. d.The sentence is written in past tense, and the

an attempt at development of supporting details,which is only partly realizedverb needs to be singular to agree with the sin-gular subject of the sentence,percent. The other

word choice and language usage that are ade-quate; but with minor errors in sentence struc-choices introduce a shift in tense.