—Can you come to dinner with us this evening, Zhao Ming?
— _______.
| A．Sure, I’d love to | B．No. That’ll be too tired |
| C．I’ll stay at home | D．It’s really kind of you |
We must do everything we can _____ our earth cleaner and safer.
| A．made | B．to making |
| C．make | D．to make |
----- I’m going to visit my aunt this weekend. She was very kind to us when we were at her home last time, remember?
-----Of course I do. _______.
| A．That sounds fun |
| B．It’s very kind of you |
| C．I hope it won’t last long. |
| D．Give my regards to her，please. |
----- I forgot my mother’s birthday!
-----_______ You’d better keep it in mind next year.
| A．You did? | B．I don’t mind. |
| C．I am afraid so. | D．No problem. |
----- How soon will you start your journey?
-----I’m not sure. I haven’t decided ________.
| A．when shall I ask the boss for leave |
| B．where I will go to spend the holiday |
| C．if I would go by train or by plane |
| D．who should I travel with |
I never doubt ______ the science museums are worth_______.
| A．whether，visiting | B．that, to visit |
| C．whether , a visit | D．that ,a visit |