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
What do most cat people probably disagree with , according to Para. 1?
A、Cats are strang
B、Cats are lovin
C、Cats are carin
D、Cats are col
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