— Thanks so much for helping a lot!
— ______.
| A．It’s nice of you to say so | B．Oh, you’d better not |
| C．Not at all | D．With pleasure |
The bus driver always says to us: “Don’t get off ______ the bus stops.”
| A．when | B．while |
| C．until | D．if |
________ of the city was covered with the heavy smog.
| A．Two-third | B．Two-thirds |
| C．Two-three | D．Two-threes |
---Can you come on Monday or Tuesday, John?
---I’m afraid _______ day is possible. I will be very busy on those two days.
| A．every | B．some |
| C．either | D．neither |
We’ve decided to decorate our new flat by ______ this weekend.
| A．us | B．our |
| C．ours | D．ourselves |
_____March 20____26, the US first lady Michelle Obama was on a trip to China with her daughters and mother.
| A．Between…and | B．From…to |
| C．By…to | D．On…to |