Try this fill-in-the-blank exercise with "there is" and "there are."

Here's another one.

This one is good: a lesson on using "it" and "there" as a subject, followed by exercises.

A nice quiz based on a Van Gogh painting.

For translation: here's a lesson with exercises on the Spanish verb "hay." All examples are translated into English and the quizzes are translation-based. Try it!