My brother"s used to hard work.改为否定句 My brother ( ) hard work .l"m proud to be able to help so many people.改为一般疑问（ ）be able to help so many people?Doctors can cure these cases.改为被动语态these cases（ ）by doctors.B

Question

My brother's used to hard work.改为否定句
My brother ( ) hard work .
l'm proud to be able to help so many people.改为一般疑问
（ ）be able to help so many people?
Doctors can cure these cases.改为被动语态
these cases（ ）by doctors.
Blindness affects {about 45 million} people around the world.对｛ ｝内提问
( )around the world?
Volunteer doctors perform operations on patients on the plane.改为同义句、
Volunteer doctors （ ）on the plane.
The are such poor patients that they can't afford to travel to hospitals.改为同义句
The patients are ( ） afford to travel to hospitals

Answer 1

is never used to
are you proud to
can be cured
how many people are being effected by blindness
operate paitients
so poor that they can't