_____ important for us _____wild animals and birds.
---Your brother often disagrees with you, _______ he ? --- _______. We often have different opinions.
____ of the students in our class is interested in skating.
The station is 2 kilometers ________ my home.
--- ____ you _____ of the pop singer called Justin Bieber? --- Yes, I have. His voice sounds_____.
The digital camera is very popular. But some still ____ too much.