句型转换（每空一词）。

1. Martin has a sore back.(改为一般疑问句)

    ________Martin ________ a sore back?

2. There's something wrong with his ear.(对画线部分提问)

    ________the matter ________ his ear?

3. You should eat some Chinese food.(改为否定句)

    You ________ eat ________Chinese food.

4. We should practice speaking English every day.(对画线部分提问)

    ________ ________you ________  ________every day?

5. Playing soccer with friends is very exciting．(改为同义句)

    ________is very exciting ________ play soccer with friends.