He noticed the helicopter hovering over the field. Then to his astonishment, he saw a rope ladder _____ out and three men climbing down it.

His manner was so pleasant that Bolla felt at （）with him at once.

患者男，40岁，2周来右侧咬物不适，冷水引起疼痛，近2日来夜间疼痛，影响睡眠，并引起半侧头痛，疼痛不能定位，检查右侧上、下磨牙面均有深的龋洞。对患牙的应急处理为

_____ for the fact that she broke her leg, she might have passed the exam. 

John'sscoreonthetestisthehighestintheclass;he____lastnight.