My cousin will use what he has bought his mother a new dress

My cousin will use what he has bought his mother a new dress he will use what he has ( to buy 还是bought)her a new dress哪个为 he'll use what he has (to buy)her a new dress.为什么不是bought he`ll use what she has ____her a new dress 1.bought 2.to buy he will use what he has to buy her a new dress What 怎么用what, He'll use what he has _____ her a new dress. My mother bought a new dress ____ me He'll use what she has ____ her a new dress. My little cousin has (),and he always saks his mother. 请教一道英语题He'll use what he has ( ） her a new dressA bought B t My mother bought me a new dress at a c___ cost my mother wore a new dress yesterday