The two girls are twins. ________names are Lucy and Lily.
( )The classroom is ten years ______ .
( )Please tell me _____ the Great Wall .
( )Liming is in New York ______ his cousin. A. at B. with C. for
( ) Do you want ____ swimming. A. go B. going C. to go
( ) ______ long is the Great Wall? A.What B. When C. How