Tom, why not stop _________ a rest— Oh, no, mum. It’s so interesting that I can’t stop _________ the kite.

Can you climb up the tall tree over there,David –Yes, let me _______.

________ he entered the small neighborhood library, Lily’s eyes lit up and observed his wandering paththrough the stacks of books.[ ]

We shouldn’t think the question of ________ they are poor or rich is important

Could you bring me that novel you _____________ me about when I dropped in on you? — Sorry, I can’tI have given it to a friend