Toobtainasatisfactoryresult，onemustapplytwo____ofpaintonacleansurface.
A、coatsA
「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” 。
Mary tiptoed over and took the clock away because she hated to hear it（） when she was trying to go to sleep.
His manner was so pleasant that Bolla felt at （）with him at once.
Of course，（）most immigrants did not get rich overnight ， but the of them were eventually able to improve upon their former standard of living.
Theeldestchildisthoroughly（）becausetheyalwaysgivehimwhateverhewant.
Hesetupinbusiness____hisownandwasverysuccessful.
