It was April 29, 2010 Prince William and Kate Middleton walked into the palace hall of the wedding ceremony.
| A．that | B．when | C．since | D．before |
With more and more new drugs________，doctors don’t find it difficult to treat patients.
| A．develop |
| B．developed |
| C．to develop |
| D．being developed |
I shouldn’t have accepted the man’s present，but I found it difficult to turn down his________.
| A．offer |
| B．request |
| C．suggestion |
| D．plan |
Helen always helps her mother even though going to school ________most of her day.
| A．takes up |
| B．makes up |
| C．saves up |
| D．puts up |
I ________it as a basic principle of the company that suppliers of raw materials should be given a fair price for their products.
| A．make |
| B．look |
| C．take |
| D．think |
We were just about to call him ________his mother came back.
| A．while |
| B．as |
| C．when |
| D．because |