24.　 Don’t ______ mistakes. They are natural part of learning.

A. worry　　 B. worry about　　 C. be worried　　 D. be worry about

23.　 Laws that punish parents for their little children’s actions against the laws get parents ___.

A. worried　　　 B. to worry　　　 C. worrying　　　 D. worry

22.　 –I’m sorry to have put you to so much trouble.　 --________.

A. No problem　　 B. No trouble　　 C. No wonder　　 D. No matter

21.　 If we can’t keep to the schedule, we’ll be ______.

A. in a trouble　 B. out of trouble　 C. in trouble　 D. at trouble

20.　 My teacher asked us to learn the key words ______.

A. in heart　　 B. in mind　　 C. by heart　　 D. to heart

19.　 –I’ve lost in the fame again.　　 --______, you still have more chances.

A. What a pity　 B. Don’t lose heart　 C. Don’t lose your heart　 D. I’m sorry for you

18.　 She rewarded him ______ a smile.　　 　　　　A. with　　 B. by　　 C. for　　 D. in

17.　 Is this how you reward me______ helping?　　 A. with　　 B. by　　 C. for　　 D. in

16.　 He received a medal ______ reward ______ his bravery.

A. in; of　　　 B. in; for　　　　 C. for; of　　　 D. for; to

15. –Are you afraid of climbing?　　　 --________.

　 A. No way　　 B. No wonder　　 C. NO doubt　　 D. No fear