If you are going to climb a mountain, don't forget ________ some warm clothes.
A. to take
B. taking
C. with taking
D. to taking
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We celebrate National Day _____________.
A. once year
B. one year
C. annual
D. annually
Since the Tang Dynasty, Luoyang ________________ the land of peony.
A. is known as
B. was known as
C. has been known as
D. had been known as
Tourists are ___________________ protect the local environment.
A. supposing to
B. supposed to
C. supposing with
D. supposed with
Eat more vagetables can improve our health and ________________.
A. well-being
B. well-known
C. well-off
D. well-done
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