He couldn’t hide his __________ at my success and said bad words about it.
A. envy B. wisdom C. purity D. power
Are you going to __________ this challenge?（挑战）
A. take up B. take down
C. take off D. take on
You _______ pay too much attention to your reading skills, as it is so important.
A. can’t B. shouldn’t
C. mustn’t D. needn’t
Green represents________and nature. When you feel weak, you can wear green.
A. sadness B. purity
C. joy D. energy
--- Cross the road carefully, __________ you’ll keep yourself safe.
--- Thank you.
A. so B. or C. but D. and
---Why do you like yellow?
--- Because it always reminds me __________ a warm, sunny day.
A. on B. in C. of D. for
