He is ________ than ______ boy in the football team.
He failed in the exam, ______ proves that he wasn’t working hard enough.
The girl got herself into a serious situation ______ she was likely to lose control over the bike.
The old lady, ______ had been killed in the war, was given help by the local government.
There are hundreds of islands ______ the coast Fujian, the biggest of ______ is not far from the main land.
It was in the lab _____ was taken charge of by Professor Zhang ______ they did the experiment .