7. There is no ___________ in trying to talk him into joining us. He enjoys being alone.
He’s rather walk than ___ a bus in the rush hour.
I’m quite familiar ___ the writer who wrote these songs.
We made plans for a visit but _____ difficulties with the car prevented it.
He didn't _____ what I read because his mind was on something else.
Scientists have to work hard to keep _____ with modern discoveries and developments.