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. 

My son really hates Math. Its complicated formulas are the reason.

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

The food at the new restaurant is __________ than the old one.

Removing one's footwear before entering a home or a temple before worship _______ a sign of respect, humility, and submissiveness.

You are ________ only person whose opinion is of any value to me in the present regrettable circumstances.

The woman ____________ about her son’s travelling because there is so much traffic on the narrow and crowded way to school.

The __________ time was a charm for Korea’s Pyeongchang 2018 Winter Olympic bid committee.

Her new apartment is different __________ her old one.

The fact that space exploration has increased dramatically in the past thirty years indicates that we are very eager to learn all we can about our solar system.

They've always encouraged me in everything I've wanted to do.

Americans believe in 'romantic' marriage - a boy and a girl are __________ to each other, fall in love, and decide to marry each other.

Hanh will finish all her work __________.