1.They would like to become doctors and nurses when they........up 
A.grow.     B.grew.      C.are growing.     D.will grow
2.I must stay at home and take care.......my little sister
A.in.     B.on.     C.of.      D.after
3.My mother need.......eggs
A.half of dozen.    B.a half of dozen.    C.half dozen.   D.half a dozen