I’ll see to your cat when you aren’t in ? What does the underlined phrase mean ?

Alex, how long ____________ you ___________ in this school?–For three years. I’ll graduate in July.

The Whites ___________ many places of interest since they came to China.

Don’t worry. Mum will come to solve the problem.—_____ she won’t come?[ ]

I’m proud_____ our great country.[ ]