WHAT IS THE MAIN USE OF BIOGAS FOR

7. What is the main use of biogas for? A. The main use of biogas is for cook and heat. B. The main use of biogas is for cooking and heating. C. The main use of biogas is to cooking and heating. D. The main use of biogas is to cooking and to heat. B. Pronunciation (5*2pts = 10pts) I. Choose the word whose underlined part is pronounced differently. (3*2pts = 6pts)