提出建议：Let's... / We should... — 英语词汇题
题目
用所给动词的适当形式填空，补全这些'绿色生活'小建议。每小题所给动词：go, save, throw（按题号顺序使用）。1. School is near. Let's ______ to school on foot. 2. Water is important. We should ______ water every day. 3. The park is clean. We shouldn't ______ rubbish on the ground.