The energy is ________ makes the cells able to do their work.
_______ and I’ll make it ______.
.—How can we go to the island twenty miles off the coast, sir?—I’m afraid you can’t get there ________ by boat.
Though ______ money, his parents managed to send him to university.
To her disappointment,what she had devoted herself to _______ in nothing but failure.
—Could you give us an account about the big fire?—OK. It was a Friday evening _______the fire broke out and ten persons were killed in it.