nhanh, đúng và ko cần giải thích Chọn thì thích hơp vs mỗi câu 1. A bird sang to me this morning. third person singular present past simple base 2. They have been playing tennis all day. base present participle present simple 3. I don't think he will guess the answer. past simple third person singular present base 4. Have you baked the cookies yet? base past participle present participle 5. Had they finished before you arrived? past simple base past participle 6. I asked your brother to drive us there. base past simple present participle 7. It is a sunny day today. past simple third person singular present past participle 8. We are in the kitchen doing the dishes. present simple present participle base 9. He was feeding the dogs. base past simple past participle 10. He walks to my car with me at night. present participle third person singular present base