They usually spend two hours _______ their homework every day.A. do B doing C to do
---How long has the meeting _______? --- Just a minute. I will check the time.
----He’s never seen to eat so much food,______________? ----No, he always eats a little.
The teacher came in, ______ a smile ______ his face.
---This is useful machine which was made in ________thirteenth century
---Mum,_______ I watch TV? ---No. Unless your homework _______________.