阅读理解。

Dear Lucy,

      How are you? Now,  I'm going to tell you something.  Last week we had a journey to Mount Tai. 

 On Tuesday we flew to Tai' an,a city at the foot of the mountain.  We had a good rest at a hotel.  At

about three o'clock early next morning, we began to climb the mountain. It look us about two hours

and a half to reach the top. The mountain is covered with forest.  I've never seen such a beautiful place.

     "Look! The sun is going to rise!" someone shouted.

     We all turned to the east and watched.  Soon half of the sky became white, and a big, red ball was

going up slowly from the sky.  A few minutes later, all the world was bright.

     We stayed on the top and had a good time.  After lunch we started going down.  We got to our hotel

at about four in the afternoon. Though we were tired, we were very happy.  We came back to school the

next day.

     Thank you very much for your last letter and the wonderful stamps.  Hope to hear

from you soon.

                                                                                                                Yours,

                                                                                                               Wu Dong

根据信件内容，判断正（T）误（F）。

(     )1.  The letter is from Wu Dong to Lucy.

(     )2.  There are many trees all over Mount Tai.

(     )3.  Wu Dong watched the sun rising at the top of the mountain.

( )4.  Lucy had sent some stamps to Wu Dong before he wrote the letter.

(     )5.  The letter doesn't tell us when Wu Dong returned to the hotel.