Mark the letter A, B, C, or D to indicate the sentence that best combines each pair of sentences given

Engineering is a process for developing solutions to problems. Inventing is a process for creating things that didn't exist before.

A. Because they didn’t think Newton could do it, he was confident.

B. They didn’t think Newton could do it because he was confident.

C. They didn’t think Newton could do it no matter how confident he was.

D. If they had thought Newton could do it, he would have been more confident.

A. Although Apple MacBook is portable and versatile, 1 cannot afford it.

B. Because Apple MacBook is portable and versatile, I cannot afforsd it.

C. If Apple MacBook isn’t portable and versatile, I might afford it.

D. No matter how portable and versatile Apple MacBook is, I can afford it.

A. Instead of trying to solve a problem, inventors' and engineers' initial ideas are to try different ideas, learn from mistakes, and try again.

B. Rarely do inventors' and engineers' initial ideas solve a problem rather than try different ideas, learn from mistakes, and try again.

C. Because inventors' and engineers' initial Ideas rarely solve a problem, they try different ideas, learn from mistakes, and try again.

D. Even though inventors' and engineers' initial ideas rarely solve a problem, they try different ideas, learn from mistakes, and try again.

A. Dr. Percy Spencer invented the microwave oven as an accident.

B. The microwave oven was Dr. Percy Spencer's accidental invention.

C. The invention of the microwave oven by Dr. Percy Spencer was an accident.

D. Dr. Percy Spencer's invention of the microwave oven was made in an accident.

A. Significant contributions have been made by scientists and inventors to the live of the common people.

B. Scientists and inventors had contributed significantly to the lives of the common people.

C. The lives of the common people have been significantly constructed by scientists and inventors.

D. The contributions which scientists and inventors made to the lives of the common people was significant.

A. Michael Faraday was employed by the Royal Institution, where he investigated the connections between electricity, magnetism and motion.

B. When Michael Faraday was employed by the Royal Institution, he investigated the connections between electricity, magnetism and motion.

C. The Royal Institution employed Michael Faraday to investigate the connections between electricity, magnetism and motion.

D. After he investigated the connections between electricity, magnetism and motion, Michael Faraday was employed by the Royal Institution.