-- I’d like to invite you to a concert this evening.-- Thank you, but _______ I’ll be free I’m not sure at the moment.
What made me surprised was his attitude __________ the mistakes I had made.
What's your attitude __________ that problem?
—Mike, you don't seem to be quite __________ today. —Well, I hardly slept last night. I was preparing for a report.
—Which of the two English films do you like better? — __________ shorter one, of course. I think it's really __________ most instructive one.
__________ about what he had done, the shy boy ran away as fast as possible.