1. You should apply lip balm to treat your chapped lips

Rewritten in imperative form:

• Apply lip balm to treat your chapped lips.
• Treat your chapped lips with lip balm.
• Use lip balm to moisturize your dry lips.

2. I / am / with / of / going / family / camping / my / at / the / fond / weekend

Corrected sentence:

I'm going camping with my family at the weekend.

3. Her hobby is collecting teddy bears (enjoys)

Rewritten sentence using the given word:

She enjoys collecting teddy bears.
Chấm điểm ạ 

1. Apply lip balm to treat your chapped lips.
2. I am going camping with my family at the fond weekend. 
3. She enjoys collecting teddy bears.