When ( ) the race ( （前一个括号填be动词,后一个括号填begin的某种时态）,
问题描述：
When ( ) the race ( （前一个括号填be动词,后一个括号填begin的某种时态）,
回答：At two o'clock this afternoon.
答
When is the race going to begin?将来时.
It is going to begin at two o'clock this afternoon.