按要求完成下列各题，每空一词。
1. Why not join an English club to practice speaking English?(改为同义句)
_______ _______ _______join an English club to practice speaking English?
2. If you want to improve English, you should practice writing a lot.(改为同义句)
Lots of writing practice_______ _______you improve your English.
3. The girl is so young that she can't ride a bicycle.(改为同义句)
The girl is_______young_______ ride a bicycle.
4. Tom don't know how to prepare the mid-exam.(改为同义句)
Tom don't know_______ _______ _______prepare the mid-exam.
