精选优质文档-倾情为你奉上四大时态专项习题一般现在时一、将下列动词改成其第三人称单数形式。1.play _ 2. eat _ 3.watch _4. study _5. have _ 6. buy _ 7. do _ 8. write _9.make _ 10. work _ 11. go _ 12. read _13. teach _ 14.see _二、用单词的正确形式填空。1. Mike _ (do) his homework every day.2. There _(be) some water in the glass. 3. The boy often _