25/2/21：英語教室：開口說英語- Prepositions-except, for, from, in, in back of, in front of. We will all go to Taipei except you. I haven`t seen you for a long time. Form now on, I will go jogging every morning. Mary students are in the room. There are many tall trees in back of our classroom. There is a bus stop in front of the department store.
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