They are _____ in Shenzhen now, I think
题型:选择题
问题:
They are _____ in Shenzhen now, I think they must enjoy themselves.[ ]
A. on holiday
B. on duty
C. on business
D. on watch
They are _____ in Shenzhen now, I think they must enjoy themselves.[ ]
A. on holiday
B. on duty
C. on business
D. on watch