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

An endangered species is a species________ population is so small that it is in danger of extinction.

Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges.

“Would you like to have dinner with me?” – “______________.”

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 not always easy to make a good ______ at the last minute.

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

A survey was _____ to study the effects of smoking on young adults.

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

Mr.Brown has kindly agreed to spare us some of his _____ time to answer our questions.

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.

A waitress served us. She was very impolite and impatient.

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

Do you know the boy ______ at the party last week?

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

The _____________ friendly products are designed not to harm the natural environment.