I'm sure you didn't lock the front door. Here's the key. -> You can't ......
 1. I'm sure you didn't lock the front door. Here's the key
 -> You can't -..
 2. John only understood very little of what teacher said.
 -> John could hardly-...
 3. On arrival at the shop, the goods are inspected carefully.
 -> When the goods-..
 4. Elizabeth got a bad cough because she started smoking cigarettes.
 -> If Elizabeth--.
 5. Mackenzie wrote four best-sellers before he was twenty.
 -> By the age of twenty--
 6. It looks as if he is running away from your fierce dog.
 -> He appears--.
 7. Wherever you are, don't forget the principles of good behavior.
 -> No matter-...
 8. I have nothing against your playing in my garden (mind)
 -> --
 9. He knows nearly everything there is to know about whales
 -> There's --.
 10. He was very sorry that he didn't see Audrey on her trip to London.
 -> He greatly--.