14) 双写最后一个字母的-ing分词
初中阶段常见的有以下这些:
1.let→letting让
hit→hitting打、撞
cut→cutting切、割
get→getting取、得到
sit→sitting坐
forget→forgetting忘记
put→putting放
set→setting设置
babysit→babysitting临时受雇照顾婴儿
2.shop→shopping购物
trip→tripping绊
stop→stopping停止
drop→dropping放弃
3.travel→travel(l)ing旅游
swim→swimming游泳
run→running跑步
dig→digging挖、掘
begin→beginning开始
prefer→preferring 宁愿
plan→planning 计划