题目内容
13.Daming always his mother the housework at weekends.( )| A. | help; do | B. | helps; do | C. | helps; doing | D. | help; to do |
分析 大明周末总是帮妈妈做家务.
解答 答案:B.
结合at weekends表达的是经常性的动作用一般现在时,表示帮助某人做某事用help sb do sth,主语Daming三单,故helps,故答案是B.
点评 一般现在时:表示经常性的事情,经常性的动作或一般性事实.
时间状语:often 经常,usually通常,always 总是,every每个,sometimes 有时,at …在几点钟
只有在第三人称单数用动词的"三单变化",其他用动词的原形.
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