不定式作表语 It is to give for he a pen

不定式作表语 It is to give for he a pen 不定式作定语?1)He is looking for a room to live in.2)Please give m I think the pen is mine .please give ( ).A.it to me B.me it The pen is kate.please give( )soon.A.back it B.it to back C. He is understood to be a man of ability.句子中不定式作什么成份. I give the pen to lacu (改成同义句) What color is it (改成复数句) He h 不定式作表语she is to work可以这么说吗 什么时候不定式作表语 it is easy for me to( )which pen is mine. 英语语法：不定式作表语和动名词作表语有什么区别 例：my job is to help people my job is Is that to eat in or in or to take away ? 为什么加to,是不定式作表语? 关于英语不定式有一个题Please give me a pen ＿ A.to write B.write C.to wr