第1个回答 2009-09-29
ask sb's help in doing
因为help后面不能加不定式to本回答被提问者采纳
第2个回答 2009-09-30
这句不是在考ask的用法了,是在说help这个用法,help to do/in doing
第3个回答 2009-09-29
ask sb to do sth
look at sb/sth
give sth to sb
get sb sth=gei ath for sb
let sb do sht
help sb do sth=help sb to do sth
be helpful to do sth
wait for sb
be glad to do sth
sell sth to do sb/sw
would like to do sth
need to do sth
why not to do sth=why don t do sth
what about doing sth
plan to do sth
It s time to do sth
tell sb to do sth
start to do sth
thank for doing sth
make sb do sht
第4个回答 2009-09-29
Ask sb's help in doing something