I hear that Jim (join)the army soon.用所给动词的适当形式填空

I hear that Jim (join)the army soon.用所给动词的适当形式填空
I hear that Jim (join)the army soon.用所给动词的适当形式填空

I hear that Jim (join)the army soon.用所给动词的适当形式填空
will join
句子有soon,动作还没发生,要用将来时

吉姆已经参军了，所以用现在完成时吧，填has joined