Sorry，we don’t allow ________ in the lecture room.
| A．to smoke | B．smoke | C．smoking | D．to smoking |
If you have a toothache（牙疼）, you should see a .
| A．dentist | B．cook | C．teacher | D．nurse |
Eighty percent of the teachers ______ women teachers in our school.
| A．is | B．are | C．be | D．was |
His mother wants him _____ at home today.
| A．stays | B．stayed | C．to stay | D．staying |
_____do they play football? —Sometimes.
| A．How soon | B．How much | C．How many | D．How often |
I usually go to the movies ________ a month.
| A．twice | B．twice time |
| C．two times | D．twice times |