单选题 15.It is a piece of information that helps someone to find the answer to a problem: for example, a teacher could give the first letter of a word he/she is trying to elicit as a______ to learners to help them find the word.
【正确答案】 B
【答案解析】考查教学方法。线索(clue)是帮助学生找到答案的提示信息。故本题选B。