Mr Smith （）（learn）Chinese for two years before he came to China 动词填空.
问题描述：
Mr Smith （）（learn）Chinese for two years before he came to China 动词填空.
答
has learned/learnt 或has been learning
“俊狼猎英”团队为您解答，祝学习进步！
答
这里应该使用过去完成时 主语+done
had learnt
希望能帮到你哦~
答
has learnt
for+一段时间，时态用现在完成时，Mr Smith是第三人称单数，用has
答
had learned
答
has been learning