---- Could I have a word with you?
---- Sorry, I am busy ______. Shall we do it later?
| A．at the moment | B．for a moment | C．on the moment | D．in a moment |
________ an hour every day has made a considerable difference to my health.
| A．Having walked | B．Walk |
| C．Walking | D．Walked |
Not only ________ polluted but also ________ crowded.
| A．is the city；are the streets |
| B．the city is；the streets are |
| C．is the city；the streets are |
| D．the city is；are the streets |
Close the door of fear behind you，and you ________ the door of faith open before you.
| A．saw | B．have seen |
| C．will see | D．are seeing |
________ made our school proud was ________ more than 60% of the students were admitted to key universities in 2013.
| A．What；because | B．That；what |
| C．That；because | D．What；that |
If the time is ________ exactly，the paper can be finished on time.
| A．made out | B．figured out |
| C．carried out | D．put out |