Gun control is a subject _______ Americans have argued for a long time.
| A．of which | B．with which | C．about which | D．into which |
As a new diplomat, he often thinks of ______ he can react more appropriately on such occasions.
| A．what | B．which | C．that | D．how |
According to statistics, a man is more than twice as likely to die of skin cancer _________ a woman.
| A．than | B．such | C．so | D．as |
_________ the right kind of training , these teenage soccer players may one day grow into the international stars.
| A．Giving | B．Having given |
| C．To give | D．Given |
Have you heard news? The price of petrol is going up again！
| A．the, the | B．不填，the |
| C．the, 不填 | D．不填，不填 |
John promised his doctor he ________ not smoke, and he has smoked ever since.
| A．might | B．should |
| C．could | D．would. |