Task 3. Make the following sentences negative and interrogative. 1) Father has already cleaned his car. 2) Mr. Snowdon has made a speech at the conference. 3) They have painted their old house. 4) Liz has bought some flowers. 5) Mrs. Gracy has gone to London. 6) Chris has phoned his friend. 7) The train has just arrived. 8) We have left our books at school. 9) The street has changed a lot. 10) Mandy has been to Greece. Task 4. Change the tense of the verbs in the following sentences into the Present Perfect. 1) The pupils are writing the dictation. 2) My friend is helping me to solve a difficult problem. 3) I am learning a poem. 4) She is telling them an interesting story

Конечно, давай выполним задания. Сначала сделаем предложения отрицательными и вопросительными, а потом изменим время глаголов в Present Perfect. **Task 3. Make the following sentences negative and interrogative.** 1) **Father has already cleaned his car.** *Negative:* Father hasn't already cleaned his car. *Interrogative:* Has father already cleaned his car? 2) **Mr. Snowdon has made a speech at the conference.** *Negative:* Mr. Snowdon hasn't made a speech at the conference. *Interrogative:* Has Mr. Snowdon made a speech at the conference? 3) **They have painted their old house.** *Negative:* They haven't painted their old house. *Interrogative:* Have they painted their old house? 4) **Liz has bought some flowers.** *Negative:* Liz hasn't bought any flowers. *Interrogative:* Has Liz bought any flowers? 5) **Mrs. Gracy has gone to London.** *Negative:* Mrs. Gracy hasn't gone to London. *Interrogative:* Has Mrs. Gracy gone to London? 6) **Chris has phoned his friend.** *Negative:* Chris hasn't phoned his friend. *Interrogative:* Has Chris phoned his friend? 7) **The train has just arrived.** *Negative:* The train hasn't just arrived. *Interrogative:* Has the train just arrived? 8) **We have left our books at school.** *Negative:* We haven't left our books at school. *Interrogative:* Have we left our books at school? 9) **The street has changed a lot.** *Negative:* The street hasn't changed a lot. *Interrogative:* Has the street changed a lot? 10) **Mandy has been to Greece.** *Negative:* Mandy hasn't been to Greece. *Interrogative:* Has Mandy been to Greece? **Task 4. Change the tense of the verbs in the following sentences into the Present Perfect.** 1) **The pupils are writing the dictation.** *Present Perfect:* The pupils have written the dictation. 2) **My friend is helping me to solve a difficult problem.** *Present Perfect:* My friend has helped me to solve a difficult problem. 3) **I am learning a poem.** *Present Perfect:* I have learned a poem. 4) **She is telling them an interesting story.** *Present Perfect:* She has told them an interesting story. **Разъяснение:** * **Task 3:** Чтобы сделать предложения отрицательными, мы добавляем "not" после вспомогательного глагола (например, "has not" или "have not"). Для вопросительных предложений, мы меняем местами вспомогательный глагол и подлежащее. * **Task 4:** Present Perfect образуется с помощью "have/has" + причастие прошедшего времени (Past Participle) основного глагола.