Nowadays, more and more people would rather ______ in the country, because there is ______ pollution than in the city.
I have no brothers ___________sisters.
How many ____ are there in the picture?
Tom is in Class 1 and I am in Class 2. ______ are not in the same class.
—Are there _______ halls in the building?—Yes, there are _______.
----________ is your friend ?----He is a worker .