Exercise1. Change the following sentences from active into passive. 1. They have completed the experiment today. 2. It has improved technological processes. 3. I have done my homework. 4. They haven’t finished the experiment yet. 5. We had arrived in Tashkent by 6 o’clock. 6. The academic year will have finished by the end of June. 7. I’ll have read this book by 3 o’clock. 8. He has got a letter from his friend recently.

teach -  have ( has0tought

buy - have ( has) bought

leave -  have ( has) left

arrange -   have ( has) arranged

take - have ( has ) taken

give - have ( has ) given

choose - have ( has ) chosen

wash - have ( has ) washed

climb - have ( has ) climed

drink - Have ( has ) drunk

travel - have ( has ) travelled

aske - have ( has ) asked

write - have ( has) written

read - have ( has) read

count - have ( has) counted

be - have ( has) been

sleep - Have ( has) slept

live - have ( has) lived

see - have ( has ) seen

hear - have ( has ) heard

feed- have ( has) fed

join - have ( has ) - joined

teach -  have ( has0tought

buy - have ( has) bought

leave -  have ( has) left

arrange -   have ( has) arranged

take - have ( has ) taken

give - have ( has ) given

choose - have ( has ) chosen

wash - have ( has ) washed

climb - have ( has ) climed

drink - Have ( has ) drunk

travel - have ( has ) travelled

aske - have ( has ) asked

write - have ( has) written

read - have ( has) read

count - have ( has) counted

be - have ( has) been

sleep - Have ( has) slept

live - have ( has) lived

see - have ( has ) seen

hear - have ( has ) heard

feed- have ( has) fed

join - have ( has ) - joined