a. Nowadays, the demand for environmentally-friendly houses …………… (to increase). b. Our neighbours …………… (to buy) a “green house” a year ago. c. Generally, houses …………… (not to use) coal for energy.
a. Nowadays, the demand for environmentally-friendly houses is increasing b. Our neighbours bought a “green house” a year ago. c. Generally, houses are not using coal for energy.
