11. Quang has been offered the oppoturnity to go abroad.
13. You'd better revise the lesson carefully for the next exam.
14. Is that course taught by Professor Cook this semester?
15. We cannot complete the construction of the lecture hall until next month.
4. Pencils will not be provided at the test, so one of your own should be brought.
8. I am not impressed by Alan's knowledge about science and technology.
