____a great dancer, Diana often receives invitations to give performances in different countries.
A、has been
B、being
C、be
D、to be
Nancy has been reading a long novel____the past two weeks.
A、for
B、from
C、before
D、till
I . Phonetics(5 points)Directions:In each of the following groups of words, there are four underlined letters or lettercombinations marked A, B, C and D. Compare the underlined parts and identify theone that is different from the others in pronunciation. Mark your answer by blackeningthe corresponding letter on the Answer Sheet.1.