按要求写句子。 1. Work hard and you will pass t

问题：

按要求写句子。

1. Work hard and you will pass the exam. (用if改写)

    ______ you ______ work hard, you ______ ______ this exam.

2. I don't know where I should visit. (同义句)

    I don't know                                                    .

3. She could speak English at the age of five. (同义句)

    She ______ ______ ______ ______ English at the age of five.

4. The baby panda weighs about 100g. (对划线部分提问)

    ______ ______ ______ the baby panda ______?

5. Skiing is interesting. Diving is interesting, too. (合并为一句)

    Skiing                                                 diving.