I usually have some tea _____ biscuits for breakfast.

Audrey reads scientific articles _____ she has free time.

Eric wanted to improve his knowledge of physics ____ he wanted to win the competition.

She is planning to enter the university because she wants to study natural sciences. She wants to study chemical engineering too. She is planning to enter the university because she wants to study _____ natural sciences _____ chemical engineering.

It’s not that I don’t like your thesis ____ I want to see the references.

Fatima is ill, ____ she is absent today.

Humanities are interesting. Natural sciences are interesting too. Humanities are _____ interesting ______ natural sciences. 

Emma was not late. And Sean was not late either.   __ Emma ____ Sean was late.

I am exhausted _____ I have been working in the laboratory all day.

I am not sure about who invented dynamite. Maybe Alfred Nobel did or maybe Lames Watt. Dynamite was invented _____ by Nobel _____  Watt.