A direct order like “Daisy, pass me the book’’ sounds rude. We’d better say “_______”

______ great fun it is to have a swim on such a hot day!

Uncle Wang gave all his savings to the Hope School ____ he himself was not rich.

It is not I but Tom and his wife that______ for the car accident.

Mr. Wang, I have trouble _____ the text.—Remember _____ it three times at least.