Question

– Why did they help Mrs Brown with her work?
– Because she was _____.

A．a(chǎn)n old friend of them	B．the friend of them
C．a(chǎn) the their friend	D．a(chǎn) good friend of theirs

Answer 1

D

試題分析：句意：為什么他們幫助布朗夫人做她的工作？因為她是他們的一位朋友。a good friend of theirs="one" of their good friends他們的一位好朋友，所以選D。