Only when he returned ___________ that the war had ended and the army had come back.
English now is also spoken as _______ foreign or second language in _______ South Asia.
I will help you ________ I don’t sleep for a night.
He devoted his whole life ________ animals in danger.
John broke his old radio ________, wishing to get a new one for Christmas.
Now a lot of new technology can _____ problems in industry.