② 注意语境分析，克服思维定势。切记：语言是活的，而语法是死的；方法：多用排除法；遇上疑问句、强调句、定语从句、插入语等要对题干进行简化和还原。 1. the old system must be reformed as soon as possible________ some honest people can’t fully show off their abilities. a. which b. that c. where d. what 2. a few years ago, my heart will go on was a popular song among young people, ______ were often heard singing it at parties. a. who b. which c. they d. that 3. there are some technologies for safe drinking water that ____ to be used to find long-term solutions to the problems the world is facing. a. are being developed b. have been developed c. is being developed d. has been developed
