We need to spend more time researching these suggestions so that we can make a(n) _______ choice.
Many questions ________ at the meeting, but he answered none.
Watching TV is ________ a kind of relaxation, and it also _______ our knowledge.
Excuse me, but can you tell me________.
The number of the people in the room_______sixty, but a number of them_________students.
What did he say? I don’t know what________.