请根据要求改写下列句子，每空一词。
小题1:You’d better eat some bread now.(改为否定句)
You’d better _________ eat _________ bread now.
小题2:Elsa spends $30 buying books each month.(保持句意基本不变)
The _________ of Elsa’s books _________ $30 each month.
小题3:Kate will return to school in a week.(对划线部分提问)
_________ _________ will Kate return to school?
小题4:Leo and David are the same age.(保持句意基本不变)
Leo is as ________ _________ David.
小题5:I went to bed after I finished my homework.(保持句意基本不变)
I ________ go to bed _________ I finished my homework.
小题1:not, any
小题2:cost, is
小题3:how, soon
小题4:old, as
小题5:didn’t, until
小题1:考查固定用法。You’d better后跟动词原形，否定在动词原形前加not。肯定句用some，否定句用any。故填not, any。
小题2:考查同义词转换。Cost指花费钱，take指花费时间，而spend的主语是人。根据spends可知，用一般现在时。故填cost, is。
小题3:in a week“一周之内”，表示的是将来，对将来提问用how soon。故填how soon。
小题4:考查固定句型。as...as“和......一样”。根据句意可知，Leo和David一样大。故填old, as。
小题5:考查固定句型。not...until“直到......才......”。故填didn’t, until。