--I'm sorry, I'm late.
--It doesn't matter this time, but as a student, you ______ be late often.
--Is Mrs. Brown really very ill?
--______ She is in the hospital now.
--I have a bad cold.
--Take the medicine and drink more water, and you'll feel ______.
--How often do I have to take the pills?
--______
---Why didn't Nick come to school yesterday?
---________ he was ill.
-Have you ________ studied ________ a group?
-Yes, I have.
-________ do you come to school every day?
-By bus.
---When will Mr. Black come to Beijing?
---______ September 5.
-We have many rules at school.
-________.
--________
--There is heavy rain.