Being kind to others should be everyone’s_________of life._________,our world will be more peaceful and beautiful.
| A．aim;If so | B．standard;If that | C．belief;Even so | D．principle;If so |
Professor Lee failed many times but he ________found a good way to solve the problem.
| A．gradually | B．entirely | C．finally | D．frequently |
Ladies and gentlemen, please fasten your seat belts. The plane________.
| A．takes off | B．is taking off | C．has taken off | D．took off |
The lady insisted that the young man ____her wallet and____to the police station at once.
| A．had stolen; be sent | B．should steal; sent |
| C．has stolen; sending | D．steal; had been sent |
Many students believe the choice of their courses and universities should ______ their own interests.
| A．be based on | B．based on | C．be basing on | D．base on |
I’ve got to go now. Something has just _________ at school and I’m needed there.
| A．come to | B．come in | C．come up | D．come over |