Life surely works better for those who make full preparations.
A. over
B. at
C. up
D. out
In a restaurant, delicious food is made by those.
A. cookers
B. teachers
C. cooks
D. salesman
She is particularly keen the piano．
A. on playing
B. to playing
C. at playing
D. in playing
They have very（明确的）views on this topic.
A. clean
B. definite
C. understanding
D. bright
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