.I don’t think _____ possible to master a foreign language without much memory work.
| A．this | B．that | C．its | D．it |
The twin sisters look so much alike that it’s ________ impossible to tell one from the other.
| A．even | B．almost | C．slightly | D．hardly |
Paris________ be a wonderful city but it’s not somewhere I’d like to live.
| A．might | B．would | C．must | D．can |
For 800 years Oxford and Cambridge universities ________ in everything from Nobel prizes to boat races.
| A．competed | B．had been competing |
| C．have competed | D．compete |
There is a lot of evidence ________ stress is partly responsible for disease.
| A．which | B．that | C．how | D．whose |
It is reported that the company has ________ a new household robot.
| A．made out | B．given out | C．taken out | D．brought out |