Question

【题目】Mike ________his computer and checked his email.
A.turned on
B.turned off
C.turned up
D.turned down

Answer 1

【答案】A
【解析】句意：麦克打开电脑，核查他的电子邮件。turn on打开； turn off关上； turn up开大点； turn down关小点；根据checked his e-mail可知要核查电子邮件，应是打开电脑，故选A。