I AM HAVING A MATH LESSON BUT I FORGOT MY __________. I HAVE SOME...

21. - File thứ 6: tieng_anh_6_221201821
File thứ 6: tieng_anh_6_221201821

21. I am having a math lesson but I forgot my __________. I have some difficulty.

A. calculator

B. bike

C. pencil case

D. pencil sharpener