问题补充:
单选题Thisisaprocesshappenswhenlandbecomesdesertpeoplecutdowntreesanddigupgrass.A.when; becauseB.that; because ofC.when; because ofD.which; because
答案:
D
时间:2021-04-10 22:57:19
单选题Thisisaprocesshappenswhenlandbecomesdesertpeoplecutdowntreesanddigupgrass.A.when; becauseB.that; because ofC.when; because ofD.which; because
D