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
This test is designed for students ____native language is not English.
A、whose
B、whom
C、to whom
D、to whose
What do most cat people probably disagree with , according to Para. 1?