mother usually cooks for at the weekend.
A. Lily and Nick; their
B. Lily’s and Nick’s; them
C. Lily and Nick’s; their
D. Lily and Nick’s; them
网友回答
A. Lily and Nick; their
B. Lily’s and Nick’s; them
C. Lily and Nick’s; their
(答案→)D. Lily and Nick’s; them
解析：句意：莉莉和尼克的妈妈通常在周末为他们做饭。题中用了mother是第三人称单数的形式，所以说明是两个人共同的妈妈，故选D