Since, For in Present Perfect Tense - answers

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• We haven't met since Christmas.
• We haven't been in the opera for over a year.
• I haven't spoken German since the end of the war.
• You have kept me waiting for half an hour!
• It is about two years since we last had news of him.
• I haven't bought a new book since April.
• We haven't seen our cousin for ages.
• His wife has changed a lot since the last time we met.
• My daughter hasn't written to me since my birthday.
• We have lived here for many years.
• It hasn't snowed here for six months.
• Our guests have been sailing since tea-time.
• It has been several hours since I had dinner.
• There hasn't been any war in this country for over a century.
• Nothing has been changed here since the Middle Ages.