--You won’t lose weight unless you take exercise every day .
----OK,I’ll try my best.
| A．although you do | B．when you take |
| C．if you don’t do | D．because you don’t take |
This is Kate's box and._____is here.
| A．my | B．her | C．your | D．his |
---What color is it?---It's ____
| A．a pen | B．a red pen | C．a red | D．red |
---Is this your ruler？---______.
| A．Yes,it's | B．Yes, it isn't |
| C．No, it isn't | D．No,it is |
----Your backpack is very nice.
----________.
| A．Yes | B．No | C．Thank you. | D．Sorry |
-- _______.Is this your book?
| A．Sorry | B．Thanks | C．Excuse me | D．No |