Passive (present tense) The process of photosynthesis 1 has been understood (learn/ understand) since the 1800s: sugar 2 (produce/capture) in plants using water, carbon dioxide and the sun's energy. Water 3 (pump/take in) by the roots of the plant. Light energy 4 (capture/ make) by chlorophyll in the plant's leaves. During this process oxygen 5 — (stay/give off) into the air. The sugar that 6 (produce/use) 7 - (go/change) into starch (food substance found in potatoes, flour, rice, etc.) that 8 (distribute/ store) in the plant.

The weather in England can change very quickly. Today I go for a walk in the country. In the morning the weather is beautiful. The sun is shining, the sky is blue and there are no clouds at all. In the middle of the morning a sudden change cames. A cool wind starts to blow, black clouds cover the sun and in a very short time it starts to rain heavily. There are no houses in sight and I have no coat with me. So I get very wet indeed and very cold too. I manage to catch a bus which takes me home. But when I arrive I shiver and sneeze, and I catch a cold. We sometimes say that England is the only country where you can have four seasons in one day.