第1题：
--- __________?
--- Two years ago.
A. Where did he go
B. How long has he been in America
C. When did he go to America
第2题：
A.Yorktown
B.Saratoga
C.Bunker Hill
D.Lexington
第3题：
When did the new rules come out?
______________________________________
第4题：
第5题：
25． When did I tell the dentist he had pulled out the wrong tooth in the end?
A． After the tooth was pulled out of my mouth．
B．After the cotton-wool was pulled out of my mouth．
C． When the dentist was asking me questions．
第6题：
A.before the Civil War
B.after the Civil War
C.before the War of Independence
D.after the War of Independence
第7题：
—When did he go to America?
—Oh, he ______ there since half a year ago.
A went
B has been
C has gone
D was
第8题：
The Americans won the war of independence in the decisive battle at ______.
A．Boston
B．Yorktown
C．Norfolk
D．Pittsburgh
第9题：
第10题：