Toobtainasatisfactoryresult，onemustapplytwo____ofpaintonacleansurface.
A
「句意」 为获得一个满意的结果，你必须在一个干净的表面上涂两层油漆。
「难点」 coat 意为“覆盖物， 层”;level 意为“(建筑物) 楼层”;times 意为“次， 回”;courses 意为“(一层)砖面;一排” 。
Even if his letter____tomorrow ， it____too late to do anything.
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
_________, the most controversial candidate in the election campaign, he has been strongly criticized for his crude comments about women.
It was recommended that passengers _____ smoke during the flight.
Nancy was surprised that they have（），They seemed to be a happy couple.