1 . The policeman raised his hand as a s_________ (信号) to stop. (根据中英文提示填空)

2 . Many animals and plants are in danger of e________ (灭绝) because of global warming. (根据中英文提示填空)

3 . You can make huge s________ (节省) by buying food in bulk. (根据中英文提示填空)

4 . We’ve made huge s________ (节省) this year with our staffing budget. (根据中英文提示单词拼写)

6 . Last week, our school organized a charity c_____________ (活动)to raise money for children living in poverty. (根据中英文提示单词拼写)

7 . Shortly after suffering from a big earthquake, m________ (大量) of people settled in a new city. (根据中英文提示单词拼写)

10 . During the pandemic lockdown, the whole society made joint efforts to guarantee adequate s___________ (供应) of fresh fruits and vegetables. (根据中英文提示单词拼写)