____ we don't plant trees, we ____ get less oxygen ____ we don't print out lots of documents we ____ reduce the amount of papers It ____ be easier to identify wastes ____ you separate the garbage Peter ____ come back to Chile ____ he save money If we____ contaminating the ocean, sea animals ____ be affected ____ it rains, we will ____ to collect it ____ the planet Earth is contaminated, we ____ be in danger If we ____ , we ____ take care the planet.

First conditional

列印
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?