Teachers ________ their students in order to help them make great progress. (对……严格)
The pay phone is in (前面) of the library.
Could you (借给) me some money to buy a book?
He is so (幸运的) to take a photo with his favorite singer.
You will not succeed (除非) you work hard.
The British teacher is very humorous. He always tells us (笑话 ).