So many people exhaust their health gaining wealth, and then have to spend their wealth to （ ） their health. (gain)
A.正确答案Cgain
B.gained
C.regain
D.gainful
So many people exhaust their health gaining wealth, and then have to spend their wealth to （ ） their health. (gain)
So many people exhaust their health gaining wealth, and then have to spend their wealth to （ ） their health. (gain)
A.正确答案Cgain
B.gained
C.regain
D.gainful
