Mistake in a sentense My students have an exercise in their textbook in which they have to find ONE mistake in each sentence. One of those sentences is 'The plane couldn't take up because it snowing so hard'. I see two mistakes there - take up (I reckon it should be 'take off') and 'it snowing' (should be 'it WAS snowing'). Am I wrong?Thanks for helping with the "fourth mistake", James (blush)