OXFORD PRACTICE GRAMMAR-19 sau đây là giáo trình lý thuyết tiếng anh và bài tập áp dụng từ cơ bản đến nâng cao , nhằm giúp các bạn có thể tự mình ôn tập và củng cố thêm về nền tảng kiến thức môn Anh văn , tự tin đạt kết quả tốt trong kỳ thi ngoại ngữ | OXFORD PRACTICE GRAMMAR 19 REVIEW OF THE PAST SIMPLE CONTINUOUS AND perfect A Introduction Read this true story. It happened some years ago. A young man walked into a supermarket in Southampton and put a few items of food in a basket. He had chosen a time when not many people were shopping in the store. He found a checkout where no one else was waiting. When the cashier had checked the goods the man gave her a 10 note. When she opened the till the man quickly snatched all the money from it and ran out of the store before she realized what was happening. At the time the security guard was standing at the other end of the store. When staff checked the records in the till they found that the thief had taken only . As he had left the 10 note behind the operation had cost him . B Comparison of tenses We use the past simple to talk about the past see Unit 8 . He snatched the money and ran away. The past simple is used for the actions in the story to tell us what happened next. We use the past continuous see Unit 9 for something around a past time or a past action. At the time of the incident not many people were shopping in the store. The few customers were in the middle of doing their shopping. We use the past perfect see Unit 18 for things before a past situation. Stafffound that the thief had taken only . The theft of the money happened before they found out how much. C Past simple and past continuous We often use these two forms together when a shorter action comes in the middle of a longer one see Unit 10B . was waiting at the checkout when I noticed a strange-looking man. Seeing the man came in the middle of the wait. D Past simple and past perfect When we use these two forms together we use the past perfect for what happened earlier. A man walked into a supermarket. He had chosen a quiet time. The choice of the time came before the arrival in the supermarket. In this example one past action followed another. He filled the basket and went to the .
