I insist that he _______ medicine instead of law.
I want to know ______the thief was caught on the spot.
The old lady’s hand shook frequently. She explained to her doctor ________ this shaking had begun half a year before, and ________, only because of this, she had been forced to give up her job.
A beam of light will not bend round corners unless______to do so with the help of a reflecting device .
Bad luck .Our maths teacher keeps us ______too much homework.
He ______to catch the last bus but she was too late .