Mark the letter A, B, C, or D on your answer sheet...

Câu hỏi: Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following question

A. unleaded

B. smokeless

C. solid

D. fossil

A. that

B. what

C. which

D. where

A. there

B. where

C. which

D. who

A. to enter

B. enter

C. entered

D. who enter

A. nature

B. natural

C. naturalized

D. naturally

A. encourage

B. decrease

C. discourage

D. prohibit