______bad weather! I can’t go to the People’s Park with my classmates.
| A．What a | B．How a |
| C．What | D．How |
----- It’s smoggy these days. That’s terrible!
----- Yes, I hope to plant trees.________ trees, ______air pollution.
| A．The more; the fewer | B．the less; the more |
| C．The less; the fewer | D．The more; the less |
Thanks to the 2014 Winter Olympics, Sochi is well-known,_______?
| A．isn’t it | B．was it |
| C．is it | D．wasn’t it |
---- ____________?
---- Sorry, we’ll go and play in the park.
| A．Don’t drop litter here. |
| B．Would you mind not playing baseball here? |
| C．You have to get up early. |
| D．Would you mind not smoking in public? |
The safety of food has become one of the _________ problems in our daily life.
| A．more expensive | B．more important |
| C．most expensive | D．most important |
We are supposed to ___________a solution to stop people from looking down at their mobile phones while driving cars.
| A．come up with | B．come from |
| C．come out | D．come true |