【最新】Self check 课件,【最新】Self check 课件,Unit 9When was it invented?Self check,【最新】Self check 课件,Self check 1,Fill in the blanks,I dont like eating chocolate. It tastes too _. Mom added salt but it still wasnt _ enough. I prefer lemons to oranges. I Like the _ taste.,sweet,salty,sour,【最新】Self check 课件,4. She likes _ cookies. They are hard, dry and easily broken.,crispy,【最新】Self check 课件,Self Check (2:P73),The abacus was invented in the sixth century by Chinese people.,【最新】Self check 课件,The umbrella w