Употребите глаголы, данные в скобках, в Present, Past или FuturePerfect.
1. I already (to write) my composition. May I go out? 2. How many pages of this book you (to read)? 3. Mike just (receive) a letter. 4. We already (to tidy) all the rooms when the guests arrived. 5. I (to carry) out all my duties by the end of this year. 6. What you (to do) for your homework? 7. The students (to learn) all the words by the time their teacher came. 8. You ever (to be) to St. Petersburg? 9. We (not/to post) the letter before they arrived. 10. What (to happen)? Why is she crying?