题目

Look! Serveal __ are watching a group of ___ eating grass on the hill. A. Germans…. sheep    B. Germans…sheeps    C.German….sheep   D.German…sheeps 答案：A 解析: German 的复数形式是Germans ;sheep的单数和复数形式相同的.   Not until David came up to me，＿．       A.  I noticed him                B.  I did notice him       C.  did I notice him             D.  had I noticed him