WHEN I CAME TO VISIT HIM LAST NIGHT, HE ...HIS HOMEWORK. HE SAID TH...

9) - DE THI TONG HOP TIENG ANH 12
Lớp 12 DE THI TONG HOP TIENG ANH 12
9) When I came to visit him last night, he ...his homework. He said that he ... it since6 o’clocka) did/didb) was doing/was doingc) was doing/has been doingd) was doing/had been doing