Open the brackets and put the verbs into the proper lense (the Present Indefinite, the Present Continuous, the Present Perfect Continuous or the Present Perfect Tense) 1. He ( finish) the first past of his book and now he (write) the second. He (work) at his book for two years. 2. Dusliri Hoffman, who (play) the hero, (give) a fine performance. 3. Why your hair (be) wet? You (swim)? 4. Doctors and scientists (show) recently the benefits of fish in the diet.

1. is finishing, 2. works, 3. is, did you swim, 4. shows.