The coal miners________in the coal mine
题型:选择题
问题:
The coal miners________in the coal mine for 10 hours before we came to their rescue.[ ]
A.had trapped
B.had been trapping
C.had been trapped
D.would have been trapped
The coal miners________in the coal mine for 10 hours before we came to their rescue.[ ]
A.had trapped
B.had been trapping
C.had been trapped
D.would have been trapped