After a series of food safety incidents, the government has ______ that not enough has been done to guarantee people green and healthy food.
| A．revised | B．recalled | C．recollected | D．reflected |
By improving reading skills, you can read faster and understand more of _______ you read．
| A．that | B．what | C．which | D．whether |
Now everyone is concerned about how to conquer the economic crisis, __________is very important for us to preserve our standard of living．
| A．which success | B．its success |
| C．the success of which | D．the success of it |
___________ the chapter four times, and I finally understand the author’s theory．
| A．Reading | B．Having read | C．To read | D．Read |
The railway bridge ___________ by 2015 will provide a faster route to transport goods．
| A．to be completed | B．is completed | C．completed | D．being completed |
-----Do you have enough to __________ all your daily expenses?
-----Oh, yes, enough and to spare．
| A．offer | B．spend | C．fill | D．cover |