i`m ___jim.do you know where he is 1.wait for 2.finding 3.looking for 4.looking after

i`m ___jim.do you know where he is 1.wait for 2.finding 3.looking for 4.looking after
i`m ___jim.do you know where he is 1.wait for 2.finding 3.looking for 4.looking after

i`m ___jim.do you know where he is 1.wait for 2.finding 3.looking for 4.looking after
3,be动词am后面要加doing形式,根据句子意思判断空格内是 寻找,所以选3

3. i`m (looking for) jim.do you know where he is?
如果1 是waiting for，也可以
I'm (waiting for) Jim, do you know where he is?

应该选3，looking for 是寻找的意思， 我在找jim, 你知道他在哪里吗？
1是等，2是找到，4是照顾的意思