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.

1. The substance is very toxic. Protective clothing must be worn at all times.
   A. Since the substance is very toxic, so protective clothing must be worn at all times.
   B. The substance is such toxic that protective clothing must be worn at all times.
   C. To protect yourself from the toxic substance, you must always wear protective clothing.
   D. The substance is too toxic to wear protective clothing at all times

2. A great deal of money is spent on advertising every year. It helps sell a lot of products.
   A. A lot of money is spent on advertising every year as it helps sell a lot of products.
   B. Advertising helps sell a lot of products, so a large number of money is spent on it every year.
   C. So much money is spent on advertising every year that it helps sell a lot of products.
   D. Advertising spends so much money every year that it helps sell a lot of products.