3. He is so e_____ for knowledge that he stays late every evening.
As a graducate in computer science, he ___ to work out the problem. A. wouldn't have failed B. can't have failed C. mustn’t have failed D. might not have failed
一平板小车静止在光滑的水平地面上，甲、乙两人分别站在车上左、右端，当两人同时相向而行时，发现小车向左移动，则( ) A.若两人质量相等，
The couple finally bought the house they wanted, for they _______enough money. A．had saved B．were saving C．would save D．were to save
某电视剧出现了“一个因私出海与外国人做生意的人被惩处”的场景，这一场景 A.属于编剧自己的杜撰 B.可能出现在清朝初年 C.
（09白鹭洲中学第一次月考）甲、乙、丙、丁、戊5只猫，其中甲、乙、丙都是短毛，丁和戊是长毛，甲、乙为雌猫，其余为雄猫。甲和戊的后代全是短
函数的定义域为，数列是公差为的等差数列，且，记． 关于实数，下列说法正确的是（ ） A．恒为负数 B．恒为正数
—Would you like to play football after school? —________. I have a lot of homework to do. A. I’m afraid not B. Enjoy yourself C. Take your time
