I bought some books xxxxxxxxx were very useful.填什么,是which还是that?

i bought some interesting books yesterday,还为同义句,i bought____ ____interesting books yesterday是两空 ____ you bought any books?Yes,I ____ some two week ago.A.Have,have bought B.Did,bought C.Have,bought D.Did,have bought选择题 I bought some books,and all of them are interesting.I bought some books,all of which are interesting..I bought some books.All of them are interesting.哪一句正确 Tomorrow is my birthday,i bought (i)some books yesterday求讲解和答案 l,bought,some,books(对划线部分提问)some,books what I bought yesterday ______ some books.请问填什么啊?答案是were, I bought some science books in that book store.(改为一般疑问句) I bought some books xxxxxxxxx were very useful.填什么,是which还是that? I bought some food y___. I bought some pres last books,i,these,bought,yesterday,are,the I bought some books for my daughter and they< >me 50 yuan.括号里怎么选used spent cost paid I bought several books.(改为同义句） I bought ( ) ( ) books Mary bought me some books yeasterday.改为被动语态 His parents bought him some books.(变否定句） I dropped some books yesterday.提问some books I bought some（ ）for my parents. what did you do yesterday afternoon?I went to the bookshop ,-----some books and visited my uncle A.to buy B.bought C.buying 理由