用定语从句翻译下面的句子（不允许用that)

我喜欢那些能严格要求的学生
这是一张他从未见过的照片
武汉是我最爱的城市
这就是他正在寻找的手表
那个正在吃饭的男孩是我的好朋友
必须用who，which，where等词才行 ，当然不是只有这几个词

用不了that,就用其他的wh句。

我喜欢那些能严格要求的学生
I like those students who strict to themselves.
这是一张他从未见过的照片
This is a picture which he never seen.
武汉是我最爱的城市
Wuhan is the city I love best.
这就是他正在寻找的手表
This is the watch which he is looking for.
那个正在吃饭的男孩是我的好朋友
The boy who is having lunch is my best friend.

1.I like the students who are strict with themselves.
2.This is a photo which he hasn't seen before.
3.Wuhan is the city which I like best.
4.This is the watch which he is looking for.
5.The boy who is having his meal is my good friend.

I like the stringent requirements of students who can
This is the one he had never seen before photos
Wuhan is my favorite city
This is what he is looking for a watch
The boy is eating is my good friend

I like the students who are strict to themselves.
This is a picture which he has never seen.
Wuhan is the city which I love so much.