The expression "exposure to' in the sentence "in most Chinese learners of English do not have enough exposure to English ..." (paragraph 1) might mean______.

A．all students can acquire native-like pronunciation
B．most students can acquire native-like pronunciation
C．not all the students can acquire native-like pronunciation
D．majority of students can acquire native-like pronunciation

A．where the state government offices are located
B．where the federal government offices are located
C．where the board of supervisors meets
D．where judges of the supreme court meet