Mark the letter A, B, C or D to indicate the underlined part that needs correction in each of the following questions

Mark the letter A, B, C or D to indicate the underlined part that needs correction in each of the following questions.

5. I really wish I have a laptop to replace this old-fashioned computer.

A. to replace                B. really                       C. have                                    D. old-fashioned

6. One of the most serious problem now isthespread of COVID-19.

A. the                          B. spread                     C. problem                  D. is

7. The bike he has just bought is more expensive as mine.

A. as                            B. is                             C. The bike                  D. just

8. When I was a student. I loved reading and fill my free time with adventure novels.

A. a student                B. with                                    C. fill                           D. When