-----I should have gone to the wonderful concert with you yesterday.-----_______. If only we would have another such chance.
Dick is the only one of the teachers who ____ Chinese. He is one of Mary’s friends who _____ been to China.
--- Would you like to _____ Professor Smith’s lecture this Sunday?--- Sorry, I have an important meeting to _______.
In the police station, I saw the man from ______room the thief had stolen the TV set.
We forbid ______ in the lecture hall, so you are forbidden _____ here
The manager along with his workers _______ day and night to complete the project.