He was down with the flu, and ____ couldn’t come to the party.
You can’t imagine _____ when they received these nice Christmas presents.
I didn’t see her in the meeting room this morning. She _____ at the meeting.
–Would you permit me ______here? - Sorry, we don’t permit _____ here in the reading room.
I remember the whole thing _____ it happened yesterday.
Our experiment had got into _____trouble, so we decided to take _____ chance and add more water, and luckily, we succeeded.