写出下列划线部分的句子成分并在句子后面的括号里写上简单句、并列句或复合句

1. ①Studying without thinking leads to confusion; thinking without study ends in puzzlement.
2. Just ①remember that you and your parents can work together ②to improve your relationship.
3. I understand ①that they’re trying to protect me from getting hurt.
4. The key to keeping the peace is① regular and ②honest communication.
5. Sometimes, competition can push you ①to do better.