问题补充:
单选题Therearesomeboys________intheriver.A.swimmingB.to swimC.are swimmingD.is swimming
答案:
A解析A 考查固定句型。There be +名词 +doing sth.“有一些......正在做某事。”故选A。
时间:2019-06-18 00:57:30
单选题Therearesomeboys________intheriver.A.swimmingB.to swimC.are swimmingD.is swimming
A解析A 考查固定句型。There be +名词 +doing sth.“有一些......正在做某事。”故选A。