the great wall has been_several times.A.added B.adding to C.
the great wall has been_several times.A.added B.adding to C.
I have been to the Great Wall A .some times B.sometimes C.so
it is nothing but time A.to add B.to be added c.adding D.add
Alexis_____to the Great Wall several times.A.goes B.has gone
the great wall is a great place ____.A.visit B.visiting C.to
Mary has visited the Great Wall.So _____ l.A.am B.have C.doe
“___ times has he visited the Great Wall?”“Twice.” A How man
36、 “___ times has he visited the Great Wall?”“Twice.”
six ____ to nine ____ fifteen . A added;makes B adding;makes
Since the Great Wall came into being,it has often been added
have you___ been to the great wall?A just B ever C never D s
have you__ to the Great Wall?a,visited b.been c.gone