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.
A、there
B、thick
C、thank
D、thirty
It is expected that by 2049 the population of the city ____ two million.
A、would reach
B、will have reached
C、will be reaching
D、would have been reached
What does most research about cats show?
A、They don't need their owners’ attention.
B、They are emotionally attached to their owners.
C、They don't experience separation anxiety as dogs do.
D、They respond to their owners’ voices less than dogs do.