She couldn’t have done that sort ofthing.—______ what she did with what youdid, I consider her more sensible. Besides, it’s none of your business. Getdown to ______ your lessons.

Where did you get to know her?—- It was on the farm _______ we worked．

What’s this in the photo—It’sUFO.I took thephoto.

With a lot of problem ________, the newly-elected president is having a hardtime. [ ]

You’d be exposed to a lot ____ pollution if you moved to a town with pure water and air. [ ]