Study the meanings of the words in the box. Read

Study the meanings of the words in the box. Read the sentences below and say what sort of advance it is about. Think of the best translation for the word in each case. Example: I should warn you in advance, we may be delayed. (A move forward in timequot;, the Russian equivalent may be quot;заблаговременноquot;.) 1 Recent advances in biotechnology have raised moral questions. 2 The factory has installed advanced machinery at enormous expense. 3 The United Nations has done a lot to advance the cause of world peace. 4 In May 1681, a force of about 2,500 troops advanced on the target. 5 At the time he was teaching a course for advanced students. 6 He has received an advance on his salary.