—Is this your family?—Yes, it is. These are my parents and those　_____　my brothers. 

There _____ ten desks in this room but there aren’t _____ in that room.

 Physics _______ an easy subject for me when I was young. I usually got high marks then.

Here       a set of keys and here        my books.

80,000 yuan ________ a lot of money, but it’s far less than we need.