Điền từ vào chỗ trống, chia động từ phù hợp 1. To meet her parents' ______, she spends five hours practising the piano every day. 2. It's not a problem for the contestants to work under ______. 3. Their PE teacher ______ them after school every day. 4. Stay away from him. He is a big ______ at our school. 5. I started playing chess two months ago, and I can ______ better now than before.