The professor ( ) this morning is from the United States.A
The professor ( ) this morning is from the United States.
A arrived B arriveing C who arrived D to arrive
我感觉B和C貌似都对的
人气：462 ℃ 时间：2020-04-15 01:16:35
解答
C 是对的,这里你要清楚,”到达“是已经完成的动作,应该是过去时态.
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