Question

【题目】— Mr. Hurst, could I join in your after-class activity from tomorrow on?
— Of course, Jenney. You can come every Tuesday and Friday afternoon.
A.take part in
B.cheer up
C.guard against

Answer 1

【答案】A
【解析】句意：——hurst先生，从明天起我可以参加你的课外活动吗？——当然可以，Jenny，你可以每周二和五的下午过来。join in=take part in意为“参加”，B.使……振奋； C.防卫，故选A。