Find a mistake in the four underlined parts of each sentence and correct

1. Find a mistake in the four underlined parts of each sentence and correct
 1.My son   can    read by the time he was four years old
                    A                B               C                 D
2. Tom won't be able working in the shed because he is ill
           A                      B                               C                D
3.Last summer I went to Nha Trang and buy a lot of souvenirs
    A                       B                                  C                    D
4.I ate noodles for dinner,but I wasn'teat anything for luch.
      A                 B                       C                D
5.We have never ate fishes and chips before
           A                B              C                D