英语：小升初必备重点句型（七）
61. too…(for sb) to …太……以致不能…… so… that… not… enough to do
The boy is too young to go to school. 那男孩太小了以致不能上学。
62. try/do one's best to do sth 尽力去做某事
try to do sth 试着（图）做某事
63. used to do sth 过去常做某事( used to be + adj/a +n)
