You shouldn’t accept a gift from a person _____ you don’t know him.

—You won’t go to Kathy’s wedding party, will you?—Yes,       invited.

I have watched a number of movies recently,______ none of them have impressed me．

______you are always optimistic and self-confident, I can't wait to make friends with you.

We should be able to do the job for you quickly, ____you give us all the necessary information.