精选优质文档-倾情为你奉上Exercise: I. Fill in the blanks with the proper form.1. I_ already _ (see) the film. I _ (see) it last week. 2. -_ he _ (finish) his work today? -Not yet.3. My father _ just _ (come) back from work. He is tired now.4. -Wheres Li Ming ? He _ (go) to the teachers office.5. I _ (work) here since I _ (move) here in 1999.6. So far I _(make) quite a few friends here.7. -How long _ the Wangs _(stay) here ? -For
