___ Pearl River flows into ___ South China Sea.
It is in Nantong _____ you’re going to pay a visit to ______ this kind of radio is made.
The girl _______ bike you took just now _______ at it.
He worked seven days a week, and six of ________ until one o’clock at night.
The wrong you have done to him is terrible, for _____ you should make an apology to him, I think.
The old lady, _______ had been killed in the war, was given help by the local government.