It is believed that a new kind of drug _____ by the scientists and they are hopeful that they will succeed in a few months.
Our school has a library and it ______ more than one million books.
---Good evening. ______ ? ---Yes, that’s right. We’d like a table on the side.
______ different life today is from ______ it was fifty years ago.
The driver was at ______ loss when ______ word came that he was forbidden to drive for speeding.
You can take the rest of the pie with you. ________, I wish you would, since I’m on a diet.