2 GRAMMAR Present perfect + for/since Complete the sentences about the company AUM with the present perfect form of the verbs in brackets. Use since or for. 1 They _______ (offer) TYCTWD more than ten years now. 2 First only a few children visited the company. But _______ 2002 this (change) because the company started special activities for children. 3 _______ the last five years the working parents _______ (always/prepare) something special. 4 _______ 2010 they _______ (even/ask) newspaper reporters to come to the event.

Let's complete the sentences using the present perfect form of the verbs and the appropriate preposition (since or for): 1. They have offered TYCTWD for more than ten years now. 2. First only a few children visited the company. But since 2002 this has changed because the company started special activities for children. 3. For the last five years the working parents have always prepared something special. 4. Since 2010 they have not even asked newspaper reporters to come to the event. Explanation: * Present Perfect Tense: Used to describe actions that started in the past and continue to the present or have a result in the present. * 'For' is used to indicate a duration of time (e.g., for five years). * 'Since' is used to indicate a specific point in time when an action started (e.g., since 2010). * Sentence 1: 'for more than ten years' indicates a duration, so 'for' is used. The present perfect of 'offer' is 'have offered'. * Sentence 2: '2002' is a specific point in time, so 'since' is used. The present perfect of 'change' is 'has changed'. * Sentence 3: 'the last five years' indicates a duration, so 'for' is used. The present perfect of 'always prepare' is 'have always prepared'. * Sentence 4: '2010' is a specific point in time, so 'since' is used. The present perfect of 'even ask' is 'have not even asked'. We also add 'not' to indicate they haven't asked the reporters.