请根据以下任务说明和写作要求，写一篇100--120词的英语短文。

假如你是李华，请就本校食堂服务（canteen service）的状况给校长写一封信。内容包括：

优点：食堂干净； 饭菜可口； 服务态度好

不足：价格偏高； 种类偏少； 等候时间较长

建议：……………

开头和结尾已为你写好。

Dear Mr. Principal,

I am a senior student of our school. I’d like to say something about the canteen service in our school. _____________________________________________________________________    

—Gina has a sweet tooth and loves meat more than anything else.

—No wonder she is        weight so fast.

A．putting                       B．losing                  C．gaining                D．balancing

If we want to       the high pace of modern life, we had better build a healthy body and have a quick mind.

A．come up with             B．keep up with       C．put up with          D．go up with

—What’s the        of our celebrating the “World Environment Day”?

—To protect our living space.

A．purpose                      B．honour                C．opinion                D．symbol

The trick we are playing        the boy is not suitable .He is becoming more and more annoyed.

A．by                             B．to                       C．with                   D．on

I don’t mind picking up your parcel from the post office.         ,the walk will do good to me.

A．Though                      B．Besides                C．At most               D．At all

In the past , ice used to       used to       the air in a room.

A．be ;cool                      B．be ;cooling           C．being; cool          D．being ;cooling

Time is so limited.        our spare time is being made full use of to prepare for the coming examinations.

A．A good many              B．A plenty of           C．A number of       D．A great deal of

The patient was surprised to discover that the hospital had      so much for the treatment given to her.

A．afforded                     B．charged               C．offered                D．cost

Deep snow ,strong wind and       cold made the repair work to the broken electric wires and towers the hardest task last winter.

A．optimistic                   B．positive               C．extreme               D．major