apologized,led, Charlie, John, room, to, the, receptionist,and, and, their (.)
___________________________________________________________________
air, the, clean,cool,trees,keep, can,and（.）
___________________________________________________________________
我们正在寻找那条钥匙。
We ________ ________ ________ the key.
妈妈，别忘了明天早上6点钟叫醒我。
Mum,don't forget ________ ________ ________ ________ at six tomorrow morning.
没有人可以做到完美，但是我们应该竭尽全力做到最好。
No one can be ________ but we should ________ ________ do our best.
爸爸终于成功戒烟了。
Finally,Dad was successful in ________ ________ smoking
