Question

【题目】He had to wash the clothes． (改为否定句)
He to wash the clothes．

Answer 1

【答案】did；not；have
【解析】原句意：他不得不洗衣服。改为否定句的句型为do not have to，句子是一般过去时，助动词用did，因此用did not have to不必做某事，故填did not have。