单项选择题
A.sit B.be sit C.sitting D.sits
A.another B.others C.some D.more
A.bachelor B.master C.doctor D.postdoctor
A.absent B.absentee C.absenting D.absence
A.principles B.principals C.principality D.prince
A.not B.never C.no D.none
A.source B.resource C.force D.grocer
A.up B.down C.below D.over
A.her a card B.to her a card C.card to her D.to her card
A.up B.off C.on D.in
A.to see B.to seeing C.for see D.for seeing