keep

问题描述:

keep
_______pressing that red betton if there is no pictures on the machine
A keep B to keep C Keeping D Kept
能说明理由和解释吗

keep
_______pressing that red betton if there is no pictures on the machine
这个句子主句缺一个动词
keeping 不是动词
kept 不用过去式
to keep 表目的 如果选D就是 主句就是 为了能按红色按钮 所以错