A. Twice
B. Twice a week
C. A week
D. Two weeks

A. some time
B. sometime
C. some times
D. sometimes

1. I take my dog out for a walk _______(one) a day.
2. There's somebody _______(hide) behind the door.
3. Sandy does her homework _______(careful) than Tom.
4. There are many tall _______ on both sides of the street. (build)
5. Why does she look _______ today? What's the matter? (worry)
6. He is old enough. He can do it by _______. (he)
7. It's great _______ to play with my pet. (funny)
8. Please write a short passage about your dog at _______ 100 words. (little)
9. Many _______ come to visit the Great Wall every year. (visit)
10. Don't climb over the wall. Look! It says, "It's _______" (safe)

A. usually
B. always
C. seldom
D. never

A. always
B. often
C. never
D. seldom

A. never
B. usually
C. often
D. sometimes

A. anyway
B. all the time
C. all time
D. all the same

A. never
B. something
C. often
D. usually

A. always
B. never
C. usually
D. sometimes

A. seldom
B. never
C. always
D. hardly ever