第22题: [单项选择]American Indian languages, which differ widely, tended to group many units of meaning into multisyllabic words.
A. all tend B. and tend C. to tend D. tending 参考答案:A 答案解析:[解析] 本题考查句子的时态。因为本句描述一般现象,所以谓语动词用一般现在时。which differ widely为插入语,不影响句子结构;“and”不能用于连接主语和谓语,all作主语的同位语。所