---______ have you been in class today?
---For two hours.
—— ___________ do you have this kind of match?
—— Once a year.
— ______ is it from your home to your school?
—Two kilometers.
— _______?
—She is thirteen.
–______ is your art Lesson?
– It’s at 8:20 today.
—Tom, don’t rub such oil into the baby’s skin, it’s not good for his health.
—______.
---The number of the students in our school is about nine _____.
---I see. ______of them are boys.
-_______students are there in your class, Mr Li?
-Fifty.
—Will people live to be 200 years old?
—____________.
----Where’s Molly?
---She_______England.