4.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 identify the one that is different from the others in pronunciation.
A、cool
B、flood
C、food
D、moon
30.
A、none
B、everyone
C、anyone
D、someone
As the manager of this new company, Charles____lots of work and almost had no time for pleasure.