— Must I turn off the gas after cooking?— Of course. You can never be________ careful with that.
--___________teachers are there in this school? --There are ninety.
–What is in the box ? -- There ________ a pencil and two rubbers.
--__________the woman in black? --She’s my mother.
-- Your blouse is very nice. --____________________.
--__________ is your aunt ? --She’s a nurse.