题目

写出下列句子中画线单词的中文释义。 （1） Senior pupils are expected to set an example to the younger children. （2） It's important to impress your seniors if you want to be promoted. 答案：【1】高年级的 【1】上级 When ______, the new railway will run for 250 miles. A．to completeB．completedC．being completedD．to be completed