一、根据括号内的要求完成句子，每空一词。
1. Tom bought some flowers for his mother last Mother’s Day. (改为一般疑问句)
________ Tom ________ ________ flowers for his mother last Mother’s Day?
2. Mary and Mike are reading under a tall tree. (对划线部分提问)
________ ________ Mary and Mike reading?
3. The ground is wet this morning. It must rain last night. (改为反意疑问句)
The ground is wet this morning. It must rain last night, ________ ________ ?
4. More and more people speak Chinese in the world. (改为被动语态)
Chinese ________ ________ by more and more people in the world.
