My clock doesn’t .— Let me have a look. Maybe I can help you.

The red light above the elevator ______ that he was at the tenth floor then.

You should be________ of your________ behaviour.[ ]

We are deeply impressed by the goal from theconferencethe averageincome will double by the year 2020.

20．—Though it is 30 years _____ we last met, I still remember the scene _____ we got separated on a rainy day