I didn't know what to do, but then an idea suddenly ________ to me.a. happenedb. emergedc. appearedd. occurred为什么是D 其他为什么不可以呢

I didn't know what to do, but then an idea suddenly ________ to me.a. happenedb. emergedc. appearedd. occurred为什么是D 其他为什么不可以呢
I didn't know what to do, but then an idea suddenly ________ to me.
a. happened
b. emerged
c. appeared
d. occurred
为什么是D 其他为什么不可以呢

I didn't know what to do, but then an idea suddenly ________ to me.a. happenedb. emergedc. appearedd. occurred为什么是D 其他为什么不可以呢
happened发生,emerged形成,appeared 出现,occurr to是固定搭配

固定用法，当表示突然想到什么时 ，用occur to sb.表示，希望对你有帮助，采纳喔