句型转换。
1. I volunteer to clean up the park. My sister volunteers to clean up the park, too. (合并为一句)
____ ______ I ______ my sister volunteers to clean up the park.
2.1 would give it to Charities if I won a mill/on dollars. (对画线部分提问)
______ you ______ if you won a million dollars?
3. Mike is a ninth grade student. He wants to be a professional singer. (合并为一句)
Mike is a ninth grade student who be a professional singer.
4. He told his teacher about his problems. (改为否定句)
He his teacher about his problems.
5. Become a volunteer today, ? (完成反意疑问句)