To do today's homework without teacher's help is difficult的主语为什么不是homework?

To do today's homework without teacher's help is difficult的主语为什么是to do today's homework? 为什么 To do today's homework without the teacher's help is very difficult.的主语中心词为to do? To do today's homework without teacher's help is difficult的主语为什么不是homework? ()want()to do it today. It`s going to be a busy day today.I have much work to do. 英语翻译Please give kids a break.The request came after an online survey about kid's activities during breaks.Some schools only allow students to play in the corridors (走廊) during the ten-minute breaks,while other even make students do homewo Today we want to (s ) what can modern zoos do to show the grandchildren of today's visitors these animals翻译 we can't leave today's work to do t_____填什么才合适 what's do you have clsses today? To do today's homework without the teacher's help is very difficult.中主语的中心词 英语翻译I( )much homework to do today. What are we going to do today? What are you going to do today. What are you going to do today? （I / have/ to / today / nothing/ do ） “Where do you want to go today? what are you go to do today