Either you or one of your students___________ to attend the meeting that is due tomorrow.

Generally speaking, students’ inner motivation with high expectations from others       essential to their development.

---- Have you heard that Tom, as well as his parents, _____ moved to Beijing?---- Really? No _____ I haven’t seen him for a long time.

—Where        my shoes, Mum? —____ under your bed.

The population, one third of which___ farmer workers, __increasing very fast.