1. He did some work this morning. (改成否定句)
    He __________ do __________ work this morning.
2. The boy next to Li Lei is my friend. (对划线部分提问)
     __________ __________ is your friend?
3. The playground is wet this morning. It must rain last night. (改为反意疑问句)
    The playground is wet this morning. It must rain last night. __________ __________?
4. "Are you going to visit Zi Gong next Week?" Father asked me. (改为间接引语)
    Father asked me __________ I __________ going to visit Zi Gong next week.