Writing long letters............... very common a hundred years ago.

To which sentence from the paragraph can we add the following clause? Since she was living in Saudi Arabia, …&hel…

There are three books in your bag, ................. one do you want?

Alex, ................. you please help me with my homework?

I need some milk and ......... bananas.

In my opinion, it is not economical… ........... your money on cheap, poor-quality products.