Water for food

Today's lesson: The passive.
Look at page 63 in CB.
Read the use of English box. To use an infinitive means : verb + to be form. Follow example given in red.
Go to ex. 3. Read the first sentence.
Instead of " people think", use It is thought and continue the same sentence.
Change the verb into the past tense. Example: think will be changed to thought.
Complete exercise 3 and 4 on page 63.
Complete exercises on page 46 and 47 in WB. Use dictionary for ex. 1.
Choices for activity 3: were soon found, were taken, was found, were rubbed, were put, was thought, are still used, were grown
Use these passive forms in the correct places in the text.