1.do2.enter3.to produce4.helping 1.The intenet is changing our life like electricity.2.Wires are usually covered with plastic.3.How much electricity does provide every year?4.You may have a bath if you want....
根据所给词的适当形式填空Electricity makes machines__do____(do) many kinds of work.Sth makes sth do sth (某物;使某物做某事) 2.You mustn't__enter____(enter) the lab without your teacher.somebody mus...