When theaccidenthappenedinthefactory , theworkers__________ screams of terror.[ ]

AlphaGo’s beating Go grandmaster Lee Sedol 4-1 has ________ an international debate about whether robots will completely take the place of humans.

It is not to discuss the questions again and again.

I wouldn’t think itto ask him tothe club—he’ll only refuse.

There was such a long queue for coffee atthe interval that we_________gave up.