_____ in thought , he almost ran into the car in front of him .
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.
–Would you mind us asking you a few questions?–_______.