He was out of work due to the global financial crisis; he was sad and discouraged, feeling that he _ his family.

You may ______ your teachers for help when you have problems.

 He told us that the best way to ______ respect was to devote ourselves to ______ high grades.

Ten minutes later，a bus ______ and everybody got on it.

       , the pay isn’t attractive enough , though the job itself is quite interesting .