2017综治维稳工作总结:1 ____ the classroom,I found him writing a letter.

来源：百度文库编辑：杭州交通信息网时间：2024/04/27 19:05:36

1 ____ the classroom,I found him writing a letter.
a Entering b.Entered c.When entered d.Having entered
填什么,请详细回答.

啊，怎么还是你。
首先，本题答案应该是A

给你简单解释一下：
对于这类分词做状语的形式，首先要找到句子的主语。由主语和动词（分词）的关系来确定分词的形式。
本句的主语是I，I 对enter这个动作显然主动的，不是被动的，所以B entered不对。
C 同理，如改为When entering...或 When I entered...就对了。
D 这里不强调“我已经进入房间”，句意不符。

这样说，楼主能明白么。

望详细分析1 ____ the classroom,..... 1 ____ the classroom,I found him writing a letter. Can you help me to ____ the classroom? Can you help me to ____ the classroom? It's raining.Don't play ____ the classroom. The desks and seats in the classroom can be ____ to the height of any student who studies here. Are there any students in the classroom? -------in the classroom She herself cleaned the classroom this morning. What's in the classroom? The teacher came into the classroom with a____ this morning?