______ he referred to in his article was unknown to the general reader.

31.The two ladies are _______ the same age, but there seems to be ten years _______ them

Do you like swimming in winter—Of course. The water a bit cold at first，but then I am warm and full of energy.

His sister hasa bad cough, ____________ she

why are your eyes red—I __ up peppers for the last five minutes.