---Is this _____ schoolbag?
---No, it isn’t. _____ is black. But this one is white.
| A．your; Mine | B．your; My | C．yours; My | D．yours; Mine |
— I’m going on a trip to Japan after the exam.
— Really? __________!
| A．Have a nice time | B．OK |
| C．Congratulations | D．It’s nice of you |
Don’t try to do everything at once. Take it a bit __________.
| A．at that time | B．all the time |
| C．at times | D．at a time |
It is five years since my dear aunt __________ here.
| A．left | B．has left | C．is left | D．had left |
I __________ the Palace Museum with my grandparents the other day.
| A．was visiting | B．have visited |
| C．visited | D．am visiting |
— We can use QQ to talk with each other on the Internet.
— Really? Will you please show me __________ it.
| A．what to use | B．how to use |
| C．when to use | D．where to use |