— A US pilot says he saw a UFO in the shape of triangle, moving very low over bushes two days ago.— ______, but I didn't think that’s true.
The specialist, ______ some of his assistants, ____ to attend our discussion.
Smiles around the world _____ be false, ______ other feelings like anger, fear or worry.
Using Dr Yuang's hybrid rice, nowadays farmers are producing harvests ________ before.
Our football team _____ every match so far this year, but we still have three more games to play.
I’m afraid I am not fit for the job, for it is ______calling for much patience.