1.Our government encourages people（to go）（go）to work on foot or b bus
2.We can use plastic bags not only once .We should （reuse）（use）them
3.（Easily）（easy）said than done
4.（Nodding）（nod）means agreement
5.My （electric）（electricity）fan doesn’t work
B.根据汉语提示,完成下列句子
1.Tom is （working）（for）（为...工作）some organizations that protect the environment
2.He（ought）（to）（应该）finish his work as soon as possible
3.They always get to school（on）（time）（准时）
4.（Make）（sure）（务必）that you should go to bed early tonight
5.You should walk there （instead）（of）（代替）riding a bike