精选优质文档-倾情为你奉上高考英语时态语态专项练习动词的常见时态1. There were hundreds of millions of beavers when European settles first _ (arrive).2. It has been a long time since I _ (know) Marget Swenson. 3. The master of the Coolidge, Henry Nelson, claimed he _ (not warn) that the harbor was mined. 4. April Fools, or April 1st, _ (be) known in many countries as a day for playing jokes on others. 5. When I remember something that _ (happen) in the past, I ofte
