My brother __ down while he __ his bicycle and hurt himself.A fell ,was riding B fell ,were riding C had fallen ,rode D had fallen ,was riding
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My brother __ down while he __ his bicycle and hurt himself.A fell ,was riding B fell ,were riding C had fallen ,rode D had fallen ,was riding
My brother __ down while he __ his bicycle and hurt himself.
A fell ,was riding B fell ,were riding
C had fallen ,rode D had fallen ,was riding
My brother __ down while he __ his bicycle and hurt himself.A fell ,was riding B fell ,were riding C had fallen ,rode D had fallen ,was riding
A fell ,was riding
固定句型 主语+ 一般过去时+when /while + 过去进行时, 表示一个动作伴随另一个动作进行
hurt himself 是与fell 并列作主句的谓语
A
fall 不可延续，只表示动作的发生
was riding 过去进行时态表示正在发生的动作
这句话的意思是他在骑自行车时摔伤了
选a 我哥哥在骑车的时候摔了下来，伤到了自己。
第一个空从后面的hurt可以看出来，这两个动作应该是并列关系，时态也应该统一。
后一个空是因为while应该接的是进行时态。
A 主从句时态遵从一致原则，排除 B（成分残缺）
While 多暗示进行时，排除C
从句子意思推断，排除D（他不会在骑车之前就从车上掉下来）