hand in:I handed in my homework to the teacher.
hands out:I helped the drive hand the old women out of the bus.
hang out:If you want to hang out,I can go with you.
happen to do:When he came in,I happended to open his book.
have been to:I have been to Germany twice.
have gone to:My father has gone to HK for 2 days.
have a try:I will have a try even if I don't know how to do.
hold on:Don't hold on,please continue to do it.
hurry up:Can you hurry up?we have no enough time
hundreds of:Hundreds of ants climbed out,walked everywhere.