didn’t know you had come back! Have you finished your teaching in America－YesI______Chinese there for more than two years

Jack will arrive in Kunming tomorrow, and weare going to meet him at the airport.

To his credit, his translation manages to be ________ to the spirit of the original.

I soon found that the work l was doing had already been done by somebody else， ,I was wasting my time.[ ]

What can she do — —______.