—Have you ever been back to our primary
问题:
—Have you ever been back to our primary school?
—Yes,I go to see Mr Wang______. [ ]
A. at times
B. at a time
C. at all time
D. at the same time
—Have you ever been back to our primary school?
—Yes,I go to see Mr Wang______. [ ]
A. at times
B. at a time
C. at all time
D. at the same time