THE PASSIVE / TEST 8 26. Soru

Bu Testin Birincisi nasyaemine

100 %

26.

- The town of Balboa is situated on the
site of a swamp, which ....... with the
rocks dug out while the Panama Canal

has been filled/was constructing

has been filling/will be constructed

was filling/had been constructed

was filled/was being constructed

will be filled/has been constructing