He is very popular among his students as he always tries to make them        in his lectures.

Jane was hit on the head by the robber and was knocked ________.

His proposal is ________ to all of us and you do not need to tell us more about it.

 He's one of those people with a very _______ imagination --- every time he hears a noise he's convinced it's someone breaking in. 

We should do more such exercises in the future，I think，_____ those we did yesterday.