Memory idioms

If I forgot what I had been thinking about or talking about it means I lost my _______ of thought

If I often forget things easily I have a memory like a ...

• drain

• sieve

• hole

If I can't remember something exactly but I'm sure I remembered it before it's on the _________ of one's tongue.

If you think very hard about something in an effort to remember it .... your brain.

• disturbs

• racks

• interferes

• bombards

To study something carefully so that you can remember it exactly:

• refresh your memory

• commit sth to your memory

• jog your memory

Can you think of one off the top of your ______ very quickly?

I didn't report it just because it ______ed my memory, it wasn't intentional. (meaning "I forgot")

It's so complicated, I need to revise it again, now it's just in one ___ and out the other. (meaning " I can forget something very quickly")