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

When he was a little boy, Mark Twain would walk (A) along the piers, watch (B) the river boats, swimming (C) and fish in the (D) Mississippi, much like his famous character, Tom Sawyer

It was only………….he told me his surname that I realized we had been to the same school

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

Recently, the island of Hawaii (A) had been (B) the subject of intensive research (C) on the occurrence (D) of earthquakes.

In the last thirty years, space exploration………….great contributions to weather forecasting

Third time lucky! After two……………attempts, Mark’s finally passed his driving test.

A: “ Would you mind moving your bag from the seat?”

B : ………….

The workers complained………..the manager………..the working conditions.