Помогите пожалуйста. Complete the sentences. Put one verb in the Past Simple and one is the Past Perfect.
a. My friend ..... (give) me a lift because I ..... (miss) the bus.
b. When he ...(finish) his homework, he.... (go) to bed.
c.When I got to school, I ..... (realize) that I.... (forget) my English book.
d.My father took me to Moscow last year. He .... (be) there as a student, so he .... (know) his way around.
e. I. ... (thank) my friend for everything he ..... (do)

a- (не уверен) has given. missedb- has finished, wentc- realized, have forgottend- had been, knewe- thanked,did (не уверен)