句型转换。根据要求完成下列各句, 每空限填一词。

1. They have three bags of yogurt. (就划线部分提问)

    _________ _________ yogurt do they have?

2. I'll help you if I have time this weekend. (改为同义句)

    I'll help you if I _________ _________ this weekend.

3. My father lived in California last year. (改为否定句)

    My father _________ _________ in California last year.

4. Frank can play soccer. He can also play basketball. (合并成一句)

    Frank can play _________ soccer _________ basketball.

5. You can't pour the milk into the cup. (改为祈使句)

    _________ _________ the milk into the cup!