Professor Liu has ________ teach psychology since he came to the Central China Normal University.
My hometown, Wanzhou, is no longer________ it used to be.
The farm________ we learned to feed cattle two years ago has changed a lot.
I________ an important conference at 10 o’clock this Sunday morning.
Would you please help me move the piano?________
Mike ________at 8:30 for the meeting, but he didn’t turn up.