Написать предложение I often read a book. в Present Simple,Present Continuous,Present Perfect,Present Perfect-Continuous,Past Simple,Past Continuous,Past Perfect,Past Perfect-Continuous

1) I often read a book - Pr. Simple2)I am reading a book now - Pr. Cont.3) I have read a book by 12 o'clock - Pr. Perf.4) I have been reading a book since morning - Pr. - Perfect Cont.5) I read a book yesterday - Past Simple6) I was reading a book at 5 o'clock yesterday - Past Cont.7) I had read a book by the time mum came back - Past Perf.8) I had been reading a book for 2 hours by the time mum came back - Past Perf.- Cont.