Here you have two more activities to practise the content of Unit 4 (and Unit 3 too): past continuous and past simple, conditional sentences 1st and 2nd type, too much, too many, too, enough, etc. Learn and enjoy!
Are you quick enough to do the following exercises in less than 5 minutes? Or aren't you too confident yet to do them and you need some more practice?
Here are some exercises for you.
One Two Three (There is a grammar mistake in the first sentence!) Four
Do you feel like listening to Cher? Quite a lot of years ago she released this song: Strong Enough. I hope you enjoy it.(A pity it has disappeared from Lyrics Training!)