They _____ on the program for almost one week before I joined them, and now we _____ it as no good results have come out.

I       Beijing in a few days. Do you know when the earliest plant      ?

The number of new energy vehicles in China’s cities ________ to reach 39,000 by the end of this month, according to Wan Gang, Chinese Minister of Science and Technology.

Mr. Brown ______ his office an hour ago and he is still on his way home.

By the time my mother came back from work, my sister and I ________ supper and were waiting for her at the table.