----- Nội dung ảnh ----- 1. I don’t know _______ English slang _______. 2. Their cat doesn’t catch _______ mouse _______. 3. How _______ student _______ are there in your class? 4. He hasn’t done _______ travelling _______ in the last two years. 5. The lawyers interviewed _______ witness _______ to the crime. 6. We didn’t see _______ people _______ on the beach yesterday. 7. Peter hasn’t made _______ progress _______ in improving his English. 8. I didn’t know _______ English grammar _______ before buying this book. 9. How _______ tooth _______ do babies usually have when they’re born? 10. He didn’t have _______ fun _______ when he was young.