I ______________ MY HOMEWORK AT 4 P.M YESTERDAY.A. AM DOING B. WAS...

11. - DE KIEM TRA CLDN ANH VAN LOP 10
Tiếng Anh DE KIEM TRA CLDN ANH VAN LOP 10

11. I ______________ my homework at 4 p.m yesterday.

A. am doing B. was doing C. have been doing D. will do