Are they correct if I : <br/><br/>(a) Use of prepositions and possessive pronouns when joining sentences: <br/><br/><i> (i) He lost his wallet. He lost his shoes.</i><br/><br/> He lost his wallet and shoes. OR He lost his wallet and his shoes. <br/><br/><i> (ii) Meet my brother. Meet my sister.</i><br/><br/> Meet my brother and sister. OR Meet my brother and my sister. <br/><br/><i> (iii) You can go there by car. You can go there by train.</i><br/><br/> You can go there by car or by train. OR You can go there by car or train. <br/><br/><i> (iv) We have English lessons this afternoon. We have Science lessons this afternoon.</i><br/><br/> We have English and Science lessons this afternoon. OR We have English lessons and Science lessons this afternoon.