同义句转换 1. The soldiers kept working day and night so that they could save more people's lives. The soldiers kept working day and night ______ ______ ______ ______ more people's lives. 2. To read English aloud every morning is very necessary. ______ ______ necessary ______ ______ English aloud every morning. 3. These questions are very easy. We can understand them. These questions are not _____ for us _____ ______. 4. The next place that we'll visit is the famous Slender West Lake. The next place ______ us ______ _______ is the famous Slender West Lake.