He was about to do something when his mother suddenly shouted out11/15Mark the letter A, B, C or D to indicate the sentence that is closest in Question. He was about to do something when his mother suddenly shouted out.He was doing something when his mother suddenly shouted out.He refused to do something about his mother suddenly shouting out.He was on the point of doing something when his mother suddenly shouted out.His mother's sudden shouting out helped him to do something.Giải thíchĐáp án C Dịch: Anh đang trên đường làm gì đó thì mẹ anh đột nhiên hét lên.