来自李砚清的问题
he()inthelaboratorythewholemorning.A.hasbeenworking,B.isworking,c.hasworked
he()inthelaboratorythewholemorning.A.hasbeenworking,B.isworking,c.hasworked
1回答
2020-06-24 18:26
he()inthelaboratorythewholemorning.A.hasbeenworking,B.isworking,c.hasworked
he()inthelaboratorythewholemorning.A.hasbeenworking,B.isworking,c.hasworked
B
整个上午他一直在实验室工作着.