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” 。
Hewasluredintoacrimehewouldnot____________havecommitted.
_____, he can now only watch it on TV at home.
Mary tiptoed over and took the clock away because she hated to hear it（） when she was trying to go to sleep.
The teachers’union _________ a lawsuit against the district calling for repairing “deplorable” school conditions.