Please give this letter Peter . He is Class 1 ,Grade 7 .A. to , inB. in , toC. to , toD. i

Please give this letter Peter . He is Class 1 ,Grade 7 .
A. to , in
B. in , to
C. to , to
D. in , in

(答案→)A. to , inB. in , toC. to , toD. in , in解析：give sth.to sb. “给某人某物”所以第一个空填to；在几年级几班用介词in。本句的意思是“请将这封信给彼得。他在七年级一班。”所以本题选A。

就是这个解释