This is the first time that the Chinese woman astronaut ______ sent into space.
- I apologize for not being able to join you for dinner. -. We'll get together later.
A newbus service to Tianjin Airport started to operate two months ago.
It is difficult for us to learn a lesson in life ________ we’ve actually had that lesson.
Lucy hasall of the goals she set for herself in high school and is ready for new challenges at university.
The glass doors have taken the place of the wooden ones at the entrance,in the natural light during the day.