— You just think of yourself! You kept me waiting for at least three hours. — I am sorry that you think so.
You can't see anything clearly through a telescope unless it ________ correctly to your sight.
The special medicine for the disease was difficult to find though ________ everywhere.
So many problems ________, he is having a difficult time.
The book is so ________ that everyone who has read it will ________ it.
—Can you see the man ________? —Yes, I can.He is my neighbor Mr Smith, who is difficult to get along with beca use he always keeps everyone ________.