All passengers______go through safety check before they take a plane.
| A．can | B．may |
| C．must | D．ought |
He ________ late for school.
| A．is often | B．often is |
| C．does often | D．often does |
—What do you think of Tara?
—She is________than Tina.
| A．much outgoing | B．outgoing |
| C．more outgoing | D．more much outgoing |
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 |