Scarcely was George Washington in his teens _____ his father died.
| A.than | B.as | C.while | D.when | 
_____ we stood at the top of the building, the people below were hardly visible.
| A.As | B.Although | C.Unless | D.In spite of | 
_____ born in Chicago, the author was famous for his stories about New York.
| A.Since | B.Once | C.When | D.Although | 
The history of nursing __ the history of man.
| A.as old as | B.is old than | C.that is as old as | D.is as old as | 
The child was __ immediately after supper.
| A.enough tired to go to bed | B.too tired to go to bed | 
| C.so tired that he went to bed | D.very tired, he went to bed | 
Poor _____ it may be, there is no place like home, _____ you may go.
| A.as; wherever | B.though; whenever | 
| C.in spite of; when | D.that; wherever | 
