C、They don't experience separation anxiety as dogs do.
D、They respond to their owners’ voices less than dogs do.
My friend John didn’t like my suggestion ____ we should share the rent.
A、that
B、what
C、how
D、why
2. 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.