Open the brackets, using the correct tense form. Explain the use of the tenses.  Mr Sherlock Holmes (sit) one morning at the breakfast table in his room in Baker Street. His friend Dr* Watson (stand) near the window, examining ...

Open the brackets, using the correct tense form. Explain the use of the tenses.   Mr Sherlock Holmes (sit) one morning at the breakfast table in his room in Baker Street. His friend Dr* Watson (stand) near the window, examining a walking stick which a visitor (forget) the day before. "To Dr Mortimer, from his friend," was engraved upon it, with the date "1884". Sherlock Holmes suddenly (turn) to Watson and (say): "The owner of this stick (have) a dog which (be) larger than a terrier and smaller than a mastiff." "How you (know)?" (ask) Watson in surprise. "I (examine) that stick carefully and (notice) the marks of a dog's teeth on it," (answer) Holmes. "They (be) too broad for a terrier and not broad enough for a mastiff. Probably the dog often (carry) the stick behind its master. I think it must be a spaniel, in fact it (be) a spaniel." Holmes (leave) the breakfast-table and (stand) near the window as he (say) this. Watson (look) at him in surprise and (ask): "How can you be so sure of that?" "For the simple reason that I (see) the dog at our door and I (hear) the bell which its master (ring). I wonder why Dr Mortimer (want) to see Mr Sherlock Holmes. Well, we soon (know). Come in," he (add), there (be) a knock at the door. * Dr: a written abbreviation for "Doctor".