“Five ________ to four is nine,”the pupil answered.

“Five ________ to four is nine,”the pupil answered.

A.adding

B.added

C.adds

D.is added

答案及解析： B

题意：“5加4等于9”，那个学生答道。add five to four 5加4,此处用作定语修饰five,故用过去分词表示被动。