The cost of living in Chengdu is among the lowest in China, ________ the quality of life is probably one of the highest.
| A．since | B．when | C．as | D．while |
—I am going to study in the USA next year！—________
| A．It's a pity. |
| B．Thanks a lot. |
| C．Not at all. |
| D．I hope everything goes well with you. |
Would you mind________the door? It's so windy and I feel so cold.
| A．closing | B．opening |
| C．to close | D．to open |
The woman ________ bought a doll for me is my aunt.
| A．who | B．whose | C．whom | D．which |
Tim won the first prize in the piano competition. His parents ________him.
| A．take care | B．look up |
| C．take pride in | D．wait for |
________exciting it is to swim in the sea while it is hot!
| A．How | B．What | C．How an | D．What an |