These books are very expensive.(改为感叹句) ()()()they are

These books are very expensive.(改为感叹句) ()()()they are
Jack looks very smart today.(对very smart提问）
（）（）Jack()today?
这条裤子不适合旅行吗?
（）this pair of shoes ()()the trip?
I don't know how i can help him.(改为同义句）
I don't know ()()()him.
作文.
Simon的爸爸和妈妈一起去参加一个聚会,Simon要去学校旅行,姐姐去度假,你能就他们要穿的衣服给一点建议吗?（包括衣服的颜色,质地等）