How long have you been going to in Tanggou Senior Middle School？——More than two years.——So it will be less than one year you graduate from this school

Neither my sister nor I been to America before.

Li Ping is tall, ___, he is handsome

How long can I _____ the book–Three weeks.

Would you mind my sitting here—______! The man next to me has just gone. The seat is empty now.