present perfect continuous tense

常見例句

雙語例句

• Today, we are going to talk about the present perfect continuous tense.
  今天，我們談?wù)勈裁词乾F(xiàn)在完成進行時。
• B. Rewrite the following sentences, using the present perfect continuous tense of the verbs in brackets.
  重寫以下的句子，并用括號里動詞的現(xiàn)在完成進行時態(tài)。
• The second function of the present perfect continuous tense is to talk about an action that started in the past and it is still happening.
  太簡單了。 我們想說那種正在進行的或者才剛剛停止的動作，就用現(xiàn)在完成進行時時態(tài)。
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