题目内容
Helen and Mary are good friends. _______often help each other.
A.Them | B.Theirs | C.They | D.Their |
C
人称代词的用法。they 代替前面所指的Helen and Mary,在句中作主语,用主格。故选C.
练习册系列答案
相关题目
题目内容
A.Them | B.Theirs | C.They | D.Their |