It was in the lab ______ was taken charge of by Professor Harris _______ they did the experiment.
I’d appreciate _______if you would like to teach me how to use the computer.
The British are not so familiar with different cultures and other ways of doing things, _____ is often the case in other countries.
When you learn a foreign language, ________you must forget your own one.
Italians often approach others closely and are moreto touch them.
Everyone will have to ______ a test before they are admitted to the university.