基本语法 |
1. I was ill ,so I __(不得不)stay at home today. 2. You____ (不必)return that book to me at once. 3. We _ (可能去)to visit my father's farm during the summer vacation. 4. You ___ (可以)call him. He __ (不可能)do anything else this afternoon. 5. ______(或许)she will invite you to her party ,too. |