Only teachers are permitted to enter the reading room, that is to say, the reading room is only________ to teachers.
The little girl couldn’t work the problem out. She wasn’t ____ clever.
Listen! His family must be quarrelling, ____?
The engineers made two big plans for the dam, ____ was never put in force.
—What do you think of the concert? —I really enjoy it. I didn’t expect it was ____ wonderful.
—Tom, you are caught late again. —Oh, ____.