Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction.

Mountains have helped (A) to protect the Swiss (B) from invaders, and indeed, Switzerland (C) has remained at peace while other European nations (D) engaging in war.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. 

We expected her at nine but she finally______at midnight.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. 

It is very important for a firm or a company to____changes in the market. 

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. 

You ______out last night. I called several times but nobody answered the phone.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. 

Having passed the entrance exam, _____go away for a holiday.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. 

“More coffee? Anybody?” ~  « ______________ »

Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction.

Political science, (A) alike the (B) other social (C) sciences, is not (D) an exact science.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. 

The diesel engine was named_____its inventor Rudolf Diesel.