1.Hardly a day goes by without my thinking of him. (almost)

-> think of him almost every day

2. My father used to smoke. (regularly)

->My father regularly smoked

3.You should do housework every now and then. (occasionally)

->You should do housework occasionally.

occasionally = every now and then

4. I didn't know until now you had a twin brother. (never)

-> I have never known that you have a win brother.

5. He doesn't write to me all of the time. (sometimes)

->He sometimes writes to me

6. My mother is at home at all times in the evening. (always)

->My mother is always at home in the evening.

7.Mary doesn't arrive late to work very often. (rarely)

->Mary rarely arrives late to work

8. Hardly has she ever cooked dinner for her husband. (never)

->She never cooks dinner for her husband.

9. She sometimes checked to see if her baby was still asleep. (then)

-> She checked to see if her baby was still asleep every now and then

10. I will remember his words to us on graduation day forever. (never)

-> I will never forget his words to us on graduation day