题目

i will have to borrow your pen ,because i ————my pen at home just now
it is a exciting film .all the children get(exciting)
When winter comes,the weather ___(become)colder and the days shorter为什么用becomes
the old man saw the accident__________(happen)when he was passing by希望有解释

提问时间：2020-10-08

答案

lost
excited
因为天气不可数,而且这个是自然界的规律,再说前面也是comes
happen,老人看到事情发生的整个过程,事情是短暂的,而且已经结束.see doing 是看到正在进行的事情.