George is very healthy. He _______ goes to the doctor.
| A．always | B．seldom |
| C．often | D．usually |
There are about two students in our school.
A. thousand B. thousands C. thousands of
—How many are there in your school?
— Twenty.
A. woman teachers B. woman teacher C. women teachers
Mo Yan is a famous writer who got the Nobel Prize. wrote many popular books.
A. He B. She C. They
—What unusual watch! Is it ?
—No, it’s .
A. a; your; Tom’s B. an; yours; Tom C. an; yours; Tom’s
You won't pass the exam _____you study hard.
A. if B. when C. Unless