If he _____(need)help,he doesn't have to go far.空格中为什么填“needs”?

If he _____(need)help,he doesn't have to go far.空格中为什么填“needs”? He _____ to the meeting if he has to look after his sick mother.A.needn‘t to comeB.doesn’t need to comeC.doesn‘t need come We don' t need you anymore go to hel He needs some help ._____ he need _____help? ____ ____ you _____ if you need the information. need sth中的need此时的need是情态动词还是实意动词.eg：he _____(need/needs) some milk. he said that they _____(NEED)more teachers here. If he _____(know) that,he would tell you. ( )He _____ a bike.A.needs.B.( )He _____ a bike.A.needs.B.is need he want to know if you need help? 请问if在这里是什么从句? If he comes ,please let me know_____ _____ _____ _____(尽快) We would be very much pleased if he _____( come ). If you need me,jut let me know.I will,_____后面填什么? Don't _____ to ask me if you need any help. If _____(shop)need plastic bags,they have to pay now in China Blindness is a serious problem for many people.If a person is blind ,he can't see____.He can't see____the view of the world,_____.He wishes he _____see the world.But most of those people don'thave______money to go to hospital.They need help.ORBIS is I wonder if he（ ）ask his brother for help.A need..B.needs C.need to D.ought what if i need