Theinventor___hisoriginaldesigninordertoincreasethemachine’seffiency.
A. exchanged
B. converted
C. modified
D. cultivated
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He___anappropriatebirthdaycardforhismother.
A. chose
B. picked
C. selected
D. elected
Childrenshouldn't___food.
A. pickoff
B. pick
C. choose
D. select
He___MissLilyforhiswife.
A. chose
B. selected
C. picked
D. elected
Whentraveling,youareadvisedtotaketravelers'checks,whichprovideasecure___tocarryingyourmoneyincash.
A. preference
B. selection
C. choice
D. alternative