关于一篇语法填空的一个空 请教大家 谢谢

语法填空(共10小题；每小题1.5分，满分15分)
阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填人一个适当的词或使用括号中词语的正确形式填空，并将答案填写在答题卡标号为26～35的相应位置上。
This happened in a third-grade classroom. Jim sat 26 his desk and all of a sudden, there was a puddle(一滩水) between his feet and the front of his trousers was wet. He felt his heart was going to stop. He knew 27 would happen when his classmates found out. He looked up and there came the teacher with 28 look in her eyes that said he 29 (discover).
As the teacher was walking towards 30 , a classmate named Susie was carrying a goldfish bowl full of water to her desk. Suddenly, Susie tripped(绊倒) and, 31 (strange), dumped the whole bowl of water in Jim’s lap. He pretended to be angry, but all the while he was saying deep in his heart, “Thank you!”
Jim became the object of sympathy instead of ridicule. The teacher brought him gym shorts to put on. All the others crawled(爬) on their hands and knees, 32 (clean) up around his desk. But 33 life would have it, the ridicule that should have been his had been transferred(转移) to Susie. She tried to help, 34 they told her to leave the room 35 school was over, Jim walked over to Susie and whispered, “You did that on purpose, didn’t you?”
Susie whispered back, “I wet my trousers once, too!”

答案：26. at 27. what 28. a 29. had been discovered 30. him
31. strangely 32. cleaning 33. as 34. but 35. When

第32空填to clean可以吗 做目的状语 和填cleaning有什么区别

在这里不行。因为，逗号+动词ing表示伴随状态。看见32前面有一个逗号么？如果想表达目的的话应该把逗号去掉：All the others crawled on their hands and knees to clean up around his desk. 二者区别是前者侧重伴随的状态，后者侧重目的。个人认为习惯表达还是用伴随状态的好。 希望能帮到你~