Some people took refuge on roofs and were plucked to safety by helicopter, but ________ of people are still missing.
A.a dozen
B.two dozen
C.three dozens
D.dozens
正确答案是D
Some people took refuge on roofs and were plucked to safety by helicopter, but ________ of people are still missing.
A.a dozen
B.two dozen
C.three dozens
D.dozens
正确答案是D