They made _______ learn skiing before they went to Switzerland.
A.attempt to
B.an attempt
C.an attempt to
D.an attempt in
A.attempt to
B.an attempt
C.an attempt to
D.an attempt in
There is no point______ the piano, unless you practise every day.
A.to learn to play
B.by learning to play
C.in learning to play
D.having learned to play
A.ce, les, cette, pré
B.vénérer, des, ne, créer
C.cesser, pesez, bébé, ces
D.chez, pèle, laisser, mes
A.表上定义le参照完整性约束
B.表存在加密的字段
C.表是非蔟表
D.表存在一个有效的触发器
E.表存在一个long型的字段
The articles made of leather cost much more than ______ made of plastic.
A.that
B.those
C.ones
D.it
The failure in the exam made her very ______.
A.oppressed
B.expressed
C.depressed
D.impressed
______, the next problem was how to make a good plan.
A.Having made the decision
B.Has the decision been made
C.The decision having been made
D.The decision has been made