改写句子 按括号中的要求完成句子，每个空格填一个单词。
They are my books.（改为否定句）
They ________ ________ my books.
They have three bags of yogurt.（就句子画线部分提问）
_________ _________ bags of yogurt do they have?
“Do you like Jinan?” Miss Wang asked me.（改写句子，句意不变）
Miss Wang asked me ________ I ________ Jinan.
How much is this sweater ? (改写句子，句意不变)
________ the ________ of this sweater ?
In order to take photos, some visitors shook the trees to make the flowers drop down.（改写句子，句意不变）
In order to take photos, the trees ________ ________ by some visitors to make the flowers drop down.