How terrible the air is now! We_______ have a blue sky.
| A．used not to | B．are not used to |
| C．used to | D．are used to |
- Did you see the sports star last Sunday?
- No. I was too late. When I rushed to the hall, it was_______.
| A．silent | B．crazy |
| C．rare | D．empty |
I'm not sure whether I can hold a party in the open air, because it_______ the weather.
| A．cares about | B．depends on |
| C．leads to | D．agrees with |
- Millie, could you give me some advice? I don't know_______.
- Why don't you wear this red shirt?
| A．when to wear | B．what to wear |
| C．how to wear | D．where to wear |
- Have you heard about the missing flight?
- Sure, it_______ the only thing on the news these days.
| A．would be | B．shall be |
| C．has been | D．will be |