题目内容：

Rewrite the following sentences as required. （按要求改写下列句子）

1.He has already bought many oranges.（改为一般疑问句）

________ he bought many oranges ________?

2.Many students have classes at weekends. （改为否定句）

Many students __________ __________ classes at weekends.

3.I’d like to be a doctor because I want to make sick people better. (对划线部分提问)

_________ ________ you like to be a doctor?

4.I leave home at 7:30 every day. I get to school at 7:45.（保持原句意思）

It ________ ________ fifteen minutes to get to school every day.

5.Tom’s diet is healthy. Jack’s diet is not very healthy.（保持原句意思）

Jack’s diet is ________ ________ than Tom’s diet.