—Excuse me, may I sit here? — . The girl on the seat will return soon. A. Yes, please B. I’m afraid not C. No, thanks
– has he lived in Canada? --Since 1998.
Ann is looking forward to her new pen friend.
The maths problem is so difficult that none of them can .
The foreigners have been in Beijing for three years, so they are familiar the city .
We should try our best English well.