老师对于表现好的学生给予免除值日打扫卫生的奖励，这是（ ）。

(单选题)In the company ______ which I work, each of us is afraid of (单选题)小学英语课堂中常常采用唱英语歌曲的教学形式，其目的是______。 (单选题)The printer ______ out of order, the secretary did not know (单选题)His coach suggested that he ______ his right hand within six (单选题)At that time she could not ______ a new dress on her income. (单选题)The United States of America has a population of over ______ (单选题)Who was the first president of the USA? (单选题)—What do you think of Xi’an?—I think it’s becoming ______. (单选题)《英语课程标准》（实验稿）对小学毕业生的英语词汇要求是______。 (单选题)《英语课程标准》（2011年版）以“______”的描述方式设定各级目标要求，旨在强调培养学生的综合语言运用能力。