You can't make progress in math learning you work harder.
A．ifB．afterC．unlessD．because
相关试题
﹣It's said that nuclear power will be used to produce electricity in Xianning．
﹣However，nuclear power _____be very dangerous．（ ）
A．canB．needC．mustD．should
﹣Please keep off the grass．Can't you see the sign____
﹣Sorry，sir！I didn't see it．（ ）
A．
B．
C．
D．
﹣What do you think of the lastest TV play the Name of People？
﹣It's very popular．Millions of families ____by it during that time．（ ）
A．attractedB．are attracted
C．were attractedD．were attracting
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﹣Yes．I made my father a card in the ____of a heart to express my love．（ ）
A．heightB．shapeC．designD．model
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