It's difficult to cross this street because there is too much _______. A. crowd B. traffic C. people D. transport

I usually _ _  jogging around the park every morning.

Put a tag question at the end of the sentence: In big cities, life can become very difficult and unpleasant, _________?

They spent a huge amount of money on the film; ______, it was not a big success.

London is a/an _____ city. It's a melting pot for people from all parts of the world.

If you want to attend at the course, you _______ pass this examination.