As a scientist, Madam Curie devoted herself ________ to her research and that was why she was given two Nobel Prizes.
_____ foreign guests come to our school for a visit every year and we exchange _____ information about education.
This is a very interesting book. I’ll buy it, _____.
This is not very good; I’d like the same one _____ you are using now.
The part he _____ in the movement was important.
You have advised her not to have breakfast in order to stay slim, and this is _____ I disagree about.