Vocab studying

Juan needs to work a bit harder because he's starting to fall ________ the others.

If you hurry, you'll be able yo catch ______ with the others.

If you keep practising, I'm sure you'll pick it _____.

You'll always have to sum ___ your arguments at the end of and essay.

Try to focus ____ your own work and don't worry about the other students.

Natalia can't go to the party because she's revising _____ an English exam tomorrow.