The discovery of the oil field, to the delight of the whole nation, will largely _______ the country’s dependence on imports of energy.
He convinced me __________the difficulty of the work.
East of the lake__________, one of which is twice the size of the other.
The room, although_________ to be kept locked, was often left open.
-----I am sorry for having been so rude to you. ---------That’s OK. I am sure you didn’t___________.
This book is said to be a special one, which __________many events not found in other history books.