fter a long riding, the passengers inthe bus were very tired and some of them ____ asleep.

Don’t run in the classroom, you may hurt yourself.

The doctors tried their best to save the patient’s life, _____ failed.

What he said was not relevant _________ the matter inhand.

The discovery of the oil field, to the delight of the whole nation, will largely _______ the country’s dependence on imports of energy