Einstein's theory of relativity forms the basis of physics.

He is expressing himself by doing transvestism.

The telephone transmitter is broken, and my voice doesn't reach the other person.

I'm thinking of having somen for lunch today.

We have a musical ensemble at school every week.

We play in concert with our friends on the weekend.

Her pair of eyes were shining like stars.

He changed the engine to improve the performance of the car.

My car needs to have its engine replaced.

He was tired from running around and went to bed early.