19.The university regulations require that the students＿＿ at least 90% of the lectures.

• A、attended

• B、to attend

• C、would attend

• D、attend

(58)___

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 answerby blackening the corresponding letter on the Answer Sheet

• A、actress

• B、business

• C、excess

• D、endless