Exercise 3
Fill in the missing expression...
- My neighbours have two children. [Their] son is my friend.
- Are you a good student? – Yes, I [am] .
- Is she at her Grandma's? – No, she [is not, isn't] .
- Are you hungry? – No, we [are not, aren't] .
- Is this your bag? – No, it [is not, isn't] my bag.
- Is Jack a millionaire? – No, he [is not, isn't] .
- Are Jack and Sue in the cinema? – Yes, they [are] .
- Is this Jack's umbrella? – Yes, it's [his] umbrella.
- Is the film interesting? – No, it [is not, isn't] .
- It's Betty's problem! – Yes, it's [her] problem. It isn't my problem.