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

1. Both cattle or railroads helped build the city of Chicago.

       A               B                            C               D

2. Mrs. Adams was surprise that her son and his friend had gone to the mountains to ski.

                                   A                      B                                 C                                D

3. The letter was sent by special delivery must be important.

                        A                       B                  C          D

4. They are planning on attending the convention next month and so I am.

A. planning                 B. attending                C. next                         D. so I am

5. Today was such beautiful day that I couldn't bring myself to complete all my chores.

                   A. such beautiful                                      B. myself C. to complete D. my chores

6. He has less friends in his classes now than he had last year.

A. less             B. his               C. than                         D. last year
GIẢI THÍCH LUÔN NHA