问题

After the ______working, we have finished _____of the whole work.
A:four-hour; three-fourthes
B:four-hour; three-fourths
C:four-hours; three –fourths
D:four-hours; three-four;
B:four-hour; three-fourths
C:four-hours; three –fourths
D:four-hours; three-four;
正确答案是: