If you just want them to 'disappear' and then respawn in random places then just randomly reposition them when a collision is detected:
if Object collision(1,t)>0
position object t,Rnd(1900)-950,30,Rnd(1900)-950
NumberOfFruits = 120
FruitColor = 0
for t = 1 to NumberOfFruits
if FruitColor = 0
r = 102
endif
if FruitColor = 1
r = 103
endif
if FruitColor = 2
r = 104
endif
if FruitColor = 3
r = 105
endif
FruitColor = FruitColor + 1
if FruitColor = 4 then FruitColor = 0
make object sphere t + NumberOfFruits ,50
texture object t + NumberOfFruits , r
position object t + NumberOfFruits ,Rnd(1900)-950,30,Rnd(1900)-950
make object collision box t + NumberOfFruits ,-25,-25,-25,25,25,25,0
next t
this is the code that generates spheres
for t = 1 to NumberOfFruits : rem If I hit one of the little fruits
if Object collision(1,t)>0
position object t,Rnd(1900)-950,30,Rnd(1900)-950
play sound 4
MyScore = MyScore + 100 : rem How many points each little fruit is worth
MyScore2=MyScore2+ 100
` delete object t + NumberOfFruits
exclude object on t + NumberOfFruits
endIf
next t