Find out the mistake in each of the following sentence

IV. WRITING (2 POINTS)
Part 1: Find out the mistake in each of the following sentence. (0.4 points)
The best part of the Mid-Autumn Festival is the perform of lion dances.               
        A               B                                                     C                  D
He got up early. Although he went to work late.    
       A         B         C                        D
Part 2: Rewrite these sentences in such other ways that their meanings are unchanged. (0.6 points)
Riding a bicycle here is dangerous because this lane is for walking only.      
->You should....................................................................................................................... 
2. What is the distance between Hai Duong and Ha Noi?
->How....................................................................................................................................
3. I was tired; however, I tried to finish all my homework.        
-> Although .....................................................................................................................