Thank you ________ helping me when I have some problems ________ my English.
--- Why do people call the private school Lu Xun Middle School?--- Because it’s _____ the famous writer, Lu Xun.
---Is tomorrow your birthday, Maria?---Yes, it is. My mother has promised _____ a new pair of shoes ______ me.
He has ______ for some years, but his _____ still makes us very sad now.
--- Do you like to visit a place____ history is very long.
--- Chinese astronauts can also walk in space now. --- Yes, they’re _____ our nation.