Of all the methods they provided, ________ is of any help for solving the math problem.

I'd appreciate      if you would turn the radio down．

Susan made______ clear to me that she wished to make a new life for herself. 

—Which kind of juice would you prefer, pineapple or orange? —_____. I must say I’ve a strong preference for tea. 

We ________for cheap houses but haven’t found ________we like yet.