全新字型─腿毛體....
ESL Grammar Practice: Present Perfect Progressive Tense 全新字型─腿毛體 "Green Apples" by Paul Cezanne, 1873 The Present Perfect Progressive Tense is formed by using the subject with "have been" or "has been" plus a present participle (-ing form) of the verb. If you're using a subject pronoun, you may use a contraction. The ....
全文閱讀