The American doctor has been there___.A.in three weeksB.three weeks agoC.has leftD.for over three weeks

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/15 12:33:30
The American doctor has been there___.A.in three weeksB.three weeks agoC.has leftD.for over three weeks

The American doctor has been there___.A.in three weeksB.three weeks agoC.has leftD.for over three weeks
The American doctor has been there___.
A.in three weeksB.three weeks agoC.has leftD.for over three weeks

The American doctor has been there___.A.in three weeksB.three weeks agoC.has leftD.for over three weeks
D for 加一段时间,前面要用完成时