8.___my daughter reaches the age of eighteen,she can apply for a driving license.
A、Unless
B、Because
C、Since
D、Once
Directions:In each of the following groups of words,there are four underlined letters or letter combinations marked A,B,C and D.Compare the underlined parts and iden-tdtify the one that is different from the others in pronunciation.Mark your answer by blackening the corresponding letter on the Answer Sheet。