Everyone has a stage in their life ______ they seem to have trouble in everything.
I’ll give the prize to _______ finishes the work first.
When he was a little boy,he ______ on the farm.
-We want someone to design the new art museum for us.-_____ the young fellow have a try?
-Are you pleased with what he has done? -Not in the least. It couldn’t be ____.
-Everyone says you are a good student. You are never late for school,are you? -_______.