In the busiest season the peasants were seen ___ their tractors ___from morning till night.
A.have, work
B.have, working
C.to have, working
D.to have, be worked
答案:C
In the busiest season the peasants were seen ___ their tractors ___from morning till night.
A.have, work
B.have, working
C.to have, working
D.to have, be worked
答案:C