E1B- Unit 9-Grammar exercises

Study the language in the image below and answer in your notebook the following questions:
(reference: Covid-19)
     1.-What is coronavirus?
     2.-How can infection by this virus be prevented?
     3.-Which are the most common signs of infection?
     4.-How is Covid-19 transmitted?

Now click on the picture and do the grammar exercises in your notebook. I will upload the answers on Friday.