When deeply absorbed in work,________he often was,he would forget all about eating or sleeping. (2012·北京,26)
179. Please don’t _____ a joke on the disable. We should try our best to help them.
178. My brother has _____ the army for more than five years.
177. You should work hard. If you do so, you are expected to _______ the club.
176. I _______ to catch the early train, but I didn't get up in time. I have to stay here for another two days.
175. They instructed me in the best ways of doing the job. The underlined part means _______.