нужно раскрыть скобки и указать какое это время  1) when did you reaslise that your bicycle (to dissapear)?        2)if she (not to work ) hard she'll fail her final examinations   3)James was sure  that he (to pass) the examinations well    4)I've lost my purse-when (to lose)it    5)the train (arrive0 at two o"clock   6) Hanna (to offer ) a new job

HAD DISSAPEAREDDOESN'T WORKWOULD PASSLOSTWILL ARRIVEHAS BEEN OFFERED

1) when did you reaslise that your bicycle had disappeared? – Past Perfect         2)if she doesn’t work  hard she'll fail her final examinations – Present Simple u Future simple.   3)James was sure  that he had passed the examinations well – Past Perfect     4)I've lost my purse-when did I lose it? – Past Simple     5)the train arrives at two o’clock  - Present Simple 6) Hanna has been offered a new job - Present Perfect Passive.