The joke told by Tom made us _____, so the teacher couldn’t make himself _____.
| A．to laugh; hearing |
| B．laughing; heard |
| C．laughing; hear |
| D．laughed; heard |
Instructions for homework have to be ______ so that every student knows clearly what is to do after class.
| A．specific | B．generous | C．general | D．detail |
It was essential that the application forms ___________ back before the deadline .
| A．must be sent | B．would be sent |
| C．be sent | D．were sent |
Don’t ________ more work than you can do, or you will ________.
| A．take over; break in | B．take on; break down |
| C．take over; break off | D．take on; break in |
The woman she acted in the film is ______ the women in the 1930s.
| A．typical of | B．conventional of |
| C．impressive of | D．consistent of |
Doctors are doing research to find out what happens physically when people______ smoking.
| A．quit | B．decline | C．prevent | D．reserve |