With sufficient scientific information a manned trip to Mars should be _____.
| A．obtainable | B．potential | C．considerable | D．feasible |
I bought a dress for only 10 dollars in a sale;it was a real _________.
| A．exchange | B．trade | C．bargain | D．business |
----What can I do for you,sir?
----I”d like to see the manager ________of sales department.
| A．in the charge | B．in charge | C．is in charge | D．under charge |
It is said that a new robot _______by him in a few days.
| A．will be designed | B．has been designed |
| C．designed | D．will have been designed |
Your chance _______if you don’t take action at once.
| A．are lost | B．will lost | C．lose | D．will be lost |
It was lucky for him to be admitted _______the university he had longed for.
| A．as | B．with | C．for | D．to |