1.The male is a mammal produces milk for offspring ? (Bats) 2.Do all mammals live on land? (no, dolphins and whales, a mammal living in water) 3.Whether a person is a mammal? (Yes) 4."Mammal" and "animal" - the same thing? ( Yes) 5.Among the dinosaurs were the mammals? (none) 6. The climate in which no mammals (known fact that prismykayuschihsya not at the poles - cold)? (mammals live everywhere except the South pole) . 7. What mammals have been domesticated? (cat, dog, horse, cow, goat, pig, etc.)
The PRESENT PERFECT TENSE is formed with a present tense form of "to have" plus the past participle of the verb (which can be either regular or irregular in form). This tense indicates either that an action was completed (finished or "perfected") at some point in the past or that the action extends to the present: I have walked two miles already [but I'm still walking]. I have run the Boston Marathon [but that was some time ago]. The critics have praised the film Saving Private Ryan since it came out [and they continue to do so].
объяснение: 5 предложение ошибка потому,что там надо поставить have not seen.остальное правильно