Each sentence has one mistake. Find and correct it: He often goes swimming and fish in the summer

Each sentence has one mistake. Find and correct it.
1. He often goes swimming and fish in the summer.
           A        B                                C   D
2. How often seasons are there in your country?
          A              B                        C      D
3. There is a long vacation on the summer.
       A             B           C        D
4. What is he often like doing in the fall?
             A          B             C       D
5. What are they going to do at this summer vacation?
     A                       B               C              D
6. She goes to visit her grandmother and grandfather next week.
             A           B     C                                          D
7. Which place is Phuong and Mai going to visit first?
       A                B                                          C           D
8. They are going in the vacation this summer.
              A             B                         C         D
9. He usually plays soccer in the winter so it’s cold.
             A                    B       C                    D
10. They always are going to have a picnic in the park.
                                       A                  B            C  D