文法書中有個題目
California state government plans to invest more money in enviromental
protection,____ many business groups question the costs in difficult
economic times.
(A) so
(B) because
(C) though
(D) therefore
有四個選項,我自己選的答案是A 對等連結詞
但是這題給的答案是C 為什麼會是C呢
我記得though只有副詞連接詞的用法 而且空格前有逗號
這應該是用對等連結詞吧
有請版上高手解惑