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题目：_______ joined Vinces’ gym, Mr. Pinter could attend group classes and h
ealth counseling sessions for free.
(A) Being
(B) having
(C) to have
(D) to be
Answer: B
疑问：请问一下这是什么句法 每次遇到这种填第一个字的题目都很头痛
网络题目没解析 我自己猜是省略原本主词 has 变成 having. 原本应该是 人 has joine
d