Tourism is the ______ for the country’s economy, so its government tries its best to ______ both the natural scenery and the places of interest.
I have no one ____ me, for I can deal with it all by myself.
_____ important thing in life is to have a great aim, and ______ determination to attain it.
The skirt __________ she spent 50 yuan is very beautiful on her.
I’ve read all the books ______you gave me.
Only when Michael had his own child ____ making a kid grow up healthily was too hard.