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!
