The famous singer will give a performance the concert hall .
| A．by | B．of | C．on | D．at |
---Would you mind my sitting here?
-- _____. Sit down, please.
| A．Of course | B．Not at all |
| C．I’m afraid not | D．Sorry, you can’t. |
Could you please ____me some suggestions for the plan?
| A．to offer | B．offer | C．to provide | D．provide |
Susan thought ____not easy to answer all these questions.
| A．it | B．that | C．them | D．this |
—Meat isn’t really dangerous , is it?
--Oh! ____! It’s not at all good for our health.
| A．Yes, it isn’t | B．No, it is |
| C．Yes, it is | D．No, it isn’t |
She opened all the windows _____she could take a bit more of fresh air.
| A．so that | B．such that | C．in order to | D．such |