_____ medicine works in a human body is a question ____ not everyone can understand fully.

We went through the report _____ but what disappointed us was that the detailed information we wanted wasn’t proved anywhere.

The hotel is ______ easy reach of the town centre. It’s only a ten-minute trip.

eb Daimler, ______ German engineer, is normally believed to have invented ______ car.

I thought we’d be late for the concert, ______ we ended up getting there ahead of time.