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ven durợc biết. Xin TOPIC 1: TENSES OF THE VERBS (Các thì của động từ) Supply the correct VERB TENSE: ..sour. 1. The coffee was all right, but the cream (be). ..a flute. 2. He has a piano and a violin, but he (not have).. 3. He says that he (arrive).. 4. ....on time tomorrow. ..on time ...