________ an hour every day has made a considerable difference to my health.
| A．Having walked | B．Walk |
| C．Walking | D．Walked |
Recently a survey __________ prices of the same goods in two different supermarkets has caused heated debate among citizens.
| A．compared | B．comparing |
| C．compares | D．being compared |
Tmall. com is booming, especially during the festivals，__________ price and variety, it is superior to other online shopping sites, like amazon. com and 360buy. com
| A．in terms of | B．in favor of |
| C．in need of | D．by means of |
When __________ such a difficult problem, he didn't know what to do.
| A．facing | B．faced |
| C．faced to | D．facing with |
__________ with so many difficulties, I had difficulty __________ my dream of running a store of my own.
| A．Facing; achieving | B．Faced; to achieve |
| C．Facing; to achieve | D．Faced; achieving |
You've failed to do what you __________ to and I'm afraid the teacher will blame you.
| A．will expect | B．will be expected |
| C．expected | D．were expected |