keep sb informed of 加从句时要不要of

问题描述:

keep sb informed of 加从句时要不要of

接that-从句时不要of,因为介词和that 从句是不相容的,但如果接whether/ what/ who/ why 等引导的宾语从句,不要省of
如:
Please keep me informed of what he is doing.