This story tells us about what happened on a fight between a passenger and an air hostess.When the plane had just taken （1）

off

off

the passenger rang and told the air hostess that he needed a cup of water to take his medicine.She told him that she （2）

would bring

would bring

（bring） him the water in ten minutes.
    Thirty minutes later，when the man's ring for service sounded for the （3）

second

second

（two） time，the air hostess was still in a hurry.She was （4）

so

so

busy that she forgot to deliver him the water.As a result，the passenger was late taking his medicine.She hurried over to him with a cup of water，but he refused it.
    In the （5）

following

following

（follow） hours on the flight，each time the air hostess passed by the passenger she would ask him with a smile （6）

if

if

he needed help，but the passenger never （7）

paid

paid

（pay） attention to her.
    When the passenger was going to get off the plane，he asked the air hostess （8）

to hand

to hand

（hand） him the passengers' booklet （意見?。?She was very sad.She knew he would write down sharp words（9）

which

which

might result in her losing her job.But with a smile she handed it to him.
    Off the plane，she opened the booklet，and smiled （10）

happily

happily

（happy），for the passenger had written， "On the flight，you asked me if I needed help twelve times in all.How can I refuse your twelve sincere smiles？"
    That's right!Who can refuse twelve sincere smiles from a person？