— Better get down to your work, Jack．
—_________．
| A．It’s my pleasure | B．Not to mention it |
| C．Mind your own business | D．You’re welcome |
Gary, please do me a favor--- _____ my laptop for me.
| A．to fetch | B．fetch | C．fetching | D．fetched |
Human life is everywhere a ____ in which much is to be endured and little to be enjoyed..
| A．case | B．condition | C．position | D．state |
This camera is of good quality. If it ______ break down within the first year, we would repair it at our expense.
| A．would | B．should | C．could | D．might |
The visitors here are greatly impressed by the fact that _______ people from all walks of life are working hard for _____ new Chengdu.
| A．不填; a | B．不填;the | C．the; a | D．the; the |
Great efforts to increase agricultural production must be made if food shortage ______ avoided.
| A．will be | B．can be | C．has been | D．is to be |