—Why do you look worried?—Fred left the company half an hour ago. His work ________ unfinished since.
No matter ______ says no to us , we will return to our motherland.
It was _______ that they planned to have a picnic.
Smith has made _______ that we are all surprised .
We are going to have a barbecue _______ it rains .
He wouldn’t give up smoking _______ his doctor told him it was a matter of life and death.