听对话,完成下列内容。 1. Sally saw Ben at the bus stop one ______ morning. 2. Last night Ben only slept for about ______ hours. 3. Ben's friend came over and had a ______ until late night. 4. Ben has to meet his study group at the ______ of his school. 5. Ben will have a ______ test in school tomorrow. 6. You may ______ a lot if you don't get enough sleep. 7. Usually foods such as ______, eggs and rice can help you stay well.