He ran _____ Krettner in the corridor a few minutes later.应填哪个介词?

问题描述:

He ran _____ Krettner in the corridor a few minutes later.应填哪个介词?

into
run into词组表示偶遇,碰见的意思
全句意思是他几分钟前在走廊里碰见了Krettner