

1: We’re going____in_____ Tom’s car tomorrow. (tại sao không dùng by ạ?)
2: I haven’t heard_____from____ Mandy since she wrote in July. (tại sao không dùng about ạ?)
2: I haven’t heard_____from____ Mandy since she wrote in July. (tại sao không dùng about ạ?)