We will wait for further information, you should keep us ________.
| A．heard | B．informed | C．realized | D．recognized |
—Robert is indeed a wise man.
—Oh, yes. How I regretted ________ his advice.
| A．to take | B．taking |
| C．not to take | D．not taking |
After Queen Elizabeth officially opened the 2012 Summer Olympics, London became the first city ________ three Olympic Games in history.
| A．to have hosted | B．hosting |
| C．hosted | D．having hosted |
TV programmes, ________ to combine learning with fun together, are growing in popularity all over the world.
| A．designing | B．to be designed |
| C．designed | D．having designed |
Without thinking, he ran out, ________ at a stranger to call the fire police.
| A．shouted | B．having shouted |
| C．to shout | D．shouting |
We often provide our children with toys, footballs or basketballs, ________ that all children like these things.
| A．thinking | B．think |
| C．to think | D．thought |