____ the dog barking fiercely, away_____.
——It will be terrible to see the nuclear war happen. ——That’s right. Nuclear science should be developed to benefit the people _____ harm them.
_____ to go abroad, his spare time is totally spent in learning English.
It was a bit doubtful at first, but it ____ to be a really good idea.
——Alice looks sad. Did you tell her about the accident? ——Yes, but I ______ her just before her final examinations.
With a lot of difficult problems ____ , the manager felt a heavy burden taken off his mind.