有關句子既問題

Reduction of adverbial clauses:-
Adverbial clauses may be reduced by changing them into:-
participial phrase;Or absolute phrase;
eg:-I visited New Government Headquarters in Admiralty yesterday.
After arriving (reaching)at the Headquarters at 9:30am., I presented a permit.---(participial phrase containing a gerund.)
A permit being presented, the visit began.----(Absolute phrase.)
There were many offices.(The past tense.)

I paid a permitted visit to the many offices of new Government Headquarters in Admiralty from 9:30am yesterday.

I visited the New Government Headquarters in Admiratly yesterday. I arrived at there at 9:30am. I presented a permit to visit there. There were many offices.

2013-07-12 13:43:23 補充：
I arrived there at 9:30am.

I visited the new Government Headquarters yesterday. Upon arriving the headquarters in Admiralty around 9:30am, I showed my identity before entering the building.

The building is majestic. It overlooks the Victoria Harbour, and houses the offices of various government departments.

以下只是建議的修改寫法

I visited the New Government Headquarters in Admiralty yesterday. I arrived at the Headquarters at 9:30am and presented a permit to enter the building. There were many offices.

註：當你不斷重複"I"或某一個主詞時便可考慮把兩句連接...因為它們應該有關係。當然還有很多可能的寫法，例如：When I arrived at the HQ at 9:30am, I presented a permt to enter.

What is your question?