-How much difficulty did you have_______ this problem? -_______. It's quite easy.
---Can you tell me _______________________? ---Luckily, with Lucy’s help.
--Did you goon vacation?--No,I stayed at home.
_______he is very young, _______ he can do many things.
Mark and Jackwork hard. Their parents and grandparents truly care about them.
---Where did you go on vacation? ---I Guangzhou.