Rewrite the following sentences as required. (根据所给要求，改写下列句子，每空格限填一词)
【小题1】Lily had a good time during her stay in Beijing. (改为否定句)
Lily didn’t have How often a good time during her stay in Beijing.
【小题2】We have a class meeting once a week. (对划线部分提问)
are made How serious do you have a class meeting?
【小题3】Many countries make laws to stop smoking in public. (改为被动语态)
Laws tall enough only... that by many countries to stop smoking in public.
【小题4】The river pollution is serious in our country today. (改为感叹句)
stayed up the river pollution is in our country today!
【小题5】Robert is so short that he can’t yet reach the pears on the table. (改为简单句)
Robert isn’t to reach the pears on the table.
【小题6】I can’t give you better advice than that. (保持原句意思)
I can give you advice.
【小题7】Bill didn’t go to bed until he finished writing the letter at 11:45 last night. (保持原句意思)
Bill until he finished writing the letter at 11:45 last night.
网友回答
解析：
【小题1】行为动词一般过去时的否定用didn’t + 动词原形，所以填入didn’t have.
【小题2】对动作频率的提问用How often.故填入How often.
【小题3】被动语态的结构为be + 过去分词，主语为laws,所以填入are made.
【小题4】感叹句的常用句型：What a / an + adj. + n + (主语 + 谓语动词)!以及How + adj. / adv. + 主语 + 谓语动词! 所以填入How serious.
【小题5】原题意为：Robert个子很矮，以致他够不着桌子上的梨子。改写后则用be enough to do sth.的结构。故填入tall enough.
【小题6】原句意为：我不能给你比这更好的建议了。也就是说：我只能给你这样的建议。所以填入only... that.
【小题7】原题意为：比尔昨晚直到11:45写完信后才睡觉。改写后可用stay up(不睡觉；熬夜)，所以填入stayed up.