老师将下面的问句改成被动语态,并根据选项编出几个关于被动语态的易错选项和正确选项.

His colleagues thought highly of him though he himself didn't think he had done anything special.
被动语态：he was thought highly of by his colleagues though he himself didn't think he had done anything special.
he was_________ by his colleagues though he himself didn't think he had done anything special.
A.thought highly of B. look up to •C. sing high praise of •D. show great respect fo