I.Phonetics(5 points) Directions:In each of the following groups of words,there are four underlined letters or let-ter 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.
A、captain
B、obtain
C、contain
D、retain
(26)__
A、long
B、short
C、happy
D、sad
46.What advantage can credit card holders have?
A、They can choose not to pay for their purchases.
B、They can easily borrow money at a lower interest.
C、They can own something before they actually pay for it.
D、They can pay only a small amount of what they owe.