at the concert 什么时态那请问 He( )a great time at the conectA have Bhave had C has had D has have应该选什么啊

at the concert 什么时态那请问 He( )a great time at the conectA have Bhave had C has had D has have应该选什么啊 play at the concert什么意思 concert前面加什么介词in the concert 还是at the concert At the concert,she plays the piano_______(bad)填什么 at the moment 用于什么时态 看到at the moment用什么时态? at the airport that morning什么时态 at the concert,in the concert,on the concert,有何不同? Nancy ()(play)the piano at the singing concert.填什么?为什么? at the moment 时态 at the end of the last week用于什么时态 by/at the age of分别使用什么时态 at the moment和 in a moment 用于什么时态 At the end of加时间 用什么时态 at the moment , at that moment ,at present各用什么时态? at the moment是什么时态 at this time用于什么时态那at that time呢？ you might try the concert at beijing concert hall.怎么翻译?