来自陈根才的问题
"Sam,turnthemusicdown!Yoursister______herhomeworkinthenextroomnow."saidthemother.()A.doB.didC.wasdoingD.isdoing
"Sam,turnthemusicdown!Yoursister______herhomeworkinthenextroomnow."saidthemother.()
A.do
B.did
C.wasdoing
D.isdoing
1回答
2020-11-17 21:07