【1.Listencarefullyandyouwillfindeverythingwearegoingtolearninthisclassiseasily____A.tounderstandB.tobeunderstandC.understoodD.ofyoutounderstand.为什么选C,2.Shesaidshecouldhardlybelievethatfemaleastronautswould】

　　1.Listencarefullyandyouwillfindeverythingwearegoingtolearninthisclassiseasily____

　　A.tounderstandB.tobeunderstandC.understoodD.ofyoutounderstand.为什么选C,

　　2.Shesaidshecouldhardlybelievethatfemaleastronautswouldbechosenforthespaceflight,____

　　A.couldsheB.couldn'tsheC.didsheD.didn'tshe为什么选D,不是上面有hardly了嘛,否定了呀,反义疑问不应该用肯定的C嘛?

　　3.

　　____nowonderthattheboycannotsleepwhenheeatssomuch.

　　A.ThereisB.ThatisC.ItisD.Thisis不是和Thereisnodoubt差不多嘛,解释为毫无疑问做某事问什么选C不选D?