( )My broyher wants to be a teacher when he _
A.will grow up B.grew up C.is growing up D.grows up
( ) You should keep the tank _
A.clean B.cleaned C.cleaning D.to clean
( ) If a dog is hungry,he _
A.barks B.will bark C.bark D.barking
( )My dogs are friendly,_ yours?
A.what B.and C.how D.with