怎牛根据要求改写句子,每空格限填一词

怎牛根据要求改写句子,每空格限填一词
1.theboy is so young that he can not join the army.(改为简单句）
the boy is not ________ ________to join the army.
2.l think the girl can swim.(改为否定句）
l______think the girl ______swim.
3.these strange things look like sandwiches.（对sandwiches提问）
__________ _________these strange things look like?
4.jim can jump 2 metres high,lucy can jump 1.5metres high.(保持句意不变）
jim can jump_______ ______ lucy.
5.this text is easier than any other text in this book.(保持句意不变）
this text is _________ ________ in this book.