When deeply absorbed in work, ______ he often was,he would forget all about eating or sleeping.
My father bought me several books, but _____ was interesting.
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.