I didn’t quite follow him because he explained the theory _____that is too abstract for me.
The operator put him ______ to 83428091.
To our ______, the result of the experiment is much better than we expected.
Fill in the ______ first and then wait for the interview in the next room.
He is familiar _____ this place, because he used to live in the apartment.
Large quantities of money_____ to the poor in that area. .