Question

Jack is ______go to school,so his mother has to stay at home to look after him. A．young enou..

Jack is ______go to school,so his mother has to stay at home to look after him. A．young enough to B．old enough to C．too young to D．very old to

Answer 1

C
考查too…to…太……而不能结构。
根据so
his
mother
has
to
stay
at
home
to
look
after
him可知他太小而不能去上学，所以选C。