How many times have you been to China?— In fact, it is the third time that I __________ here.

Miss Gao has taught us English two years. I have beenhere two years ago. [ ]

Mum, when can I watch TV? —As soon as your homework ______.

_____ do you visit your teacher who taught you years ago? —Once a year.[ ]

There are two _______students in my school.