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I'm pretty sure the materials I requested still haven't arrived.
I'm pretty sure the business he recently started is doing well.
I'm pretty sure the first estimate he gave was too high.
I'm pretty sure the explanation I got was hard to follow.
I'm pretty sure the issue she was dealing with was more serious than I thought.
I'm pretty sure things got faster once she took over.
I'm pretty sure the plan we made fell apart halfway.
I'm pretty sure the agreement we made still stands.
I'm pretty sure the book you recommended exceeded my expectations.
I'm pretty sure the photos he took were practically professional.
I'm pretty sure the room I thought I'd booked wasn't reserved.
I'm pretty sure the proposal you submitted impressed the higher-ups.