Who is ___ English teacher?—Well, it’s Mrs. Green. She teaches ____ English very well.
The math problem was ________ difficult for me ________ work out. [ ]
Many teachers believe that children learn _____ life, not just from their textbooks. [ ]
Tourism, it brings in money to a country,can also result in damage to the World Heritage sites there.
_ _ a good teacher, he prepares for class carefully.[ ]