15. Read the letter and write the missing words. Write one word on each line.

Here's the solution to the letter: Dear Mum and Dad, England is great! I have 1) just come back from a short trip to Cambridge. It's a beautiful city. Last week, I visited all the tourist attractions in London. I saw Big Ben and Buckingham Palace and took lots of photos. I haven't been to the London Eye 2) yet but I'm planning to go soon. Two days 3) ago, I had tea at the Savoy Hotel! Translation and explanation: * "just": Means very recently. * "yet": Used to ask or say that something has not happened but probably will happen. * "ago": Used to say how far in the past something happened.