He noticed the helicopter hovering over the field. Then to his astonishment, he saw a rope ladder _____ out and three men climbing down it.
A、throwingB
暂无解析
_____, he would not have recovered so quickly.
Under this（）pressure some of the rocks even became liquid.
Hesetupinbusiness____hisownandwasverysuccessful.
_____enough time and money, the researchers would have been able to discover more in this field.
TheClarkshaven’tdecidedyetwhichhotel_____.
