二、单项填空(共15小题;每小题1分,满分15分)21Keep on running every day and you will from it .A.benefit;long before B.gain;before long C.benefit;before long D.gain;soon22Susan is on a special to lose weight. A.foodB.diet C.mealD.dinner23He is always ready to help others.Thats one of his . A.strengthsB.powers C.abilitiesD.benefits24I wont let him that excuse.I know he is telling a lie!A.get along withB.get down to C.