26. He has made a lot of mistakes in his writing  because his carelessness.

             A                      B       C                        D

27. They had to sell their house because of they needed money.

           A              B                      C                   D

28. People are not allowed to enter the park after midnight because lack of security.

                                        A                       B                        C             D

29. In spite of my father is old, he still goes to work.

  A                             B                  C          D  

30. In spite the danger, they managed to cross the river during the night.

          A                                        B           C                      D