If you want to join us, please let us know _________ you can.

Why were you late for school this morning–I got up very early this morning, ________ I didn’t catch the first bus.

When you rewrite the paragraph, I advise you to _____ the lastsentence as it is rather boring.

There _______ two nice films this evening.

The story was _______ interesting _______ everyone would listen to it.