( )my daughter reaches the age of eighteen, she can apply for a driving license.
A.正确答案CUnless
B.Because
C.Since
D.Once
( )my daughter reaches the age of eighteen, she can apply for a driving license.
( )my daughter reaches the age of eighteen, she can apply for a driving license.
A.正确答案CUnless
B.Because
C.Since
D.Once