1.Dust and dirt soon a if a house is not cleaned regularly.
答案:accumulate
2.Leaders should share s and happiness of the masses.
答案:sorrow
3.The brave college student jumped into the river to save the drowning child without any h .
答案:hesitation
4.The beggar passed by, (拖着) his wounded leg.
答案:trailing
5.When you are in a strange place,you must (调整) yourself to the new environment.
答案:adjust
6.Much to everyone’s surprise,the billionaire decided to donate most of his (财产) to the charity.
答案:possession