Hãy điền dạng thích hợp của động từ trong ngoặc để hoàn thành những câu sau.
1. -"You ( have ) a brother or sister ?" - "No, I don't."
2. My brother is lazy. Sometimes he ( not do ) his lessons before going to school.
3. You can't go out now. It ( rain ) very hard.
4. -"You ( know ) that boy ?"
-"Yes. He ( be ) a friend of my brother's "
Giúp mik nha mọi người