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. 

We haven't received any reply to our letter. It is such an insult.

The children had to ______ in the principal's office after they took part in a fight.

I've just been offered a new job! Things are ______. 

Mark the letter A, B, C, or D on your answer sheer to indicate the underlined part that needs correction in each of the following questions

It is necessary and required that dental technicians and others who work with X-rays limit their exposure to these highly penetrating rays

______ Alan for hours but he just doesn't answer his mobile. I hope nothing's wrong. 

My older brother is extremely fond of astronomy, he seems to ______ a lot of pleasure from observing the stars

Most teenagers go through a rebellious ______ for a few years but they soon grow out of it.

In Hawaii it is _______ to greet visitors to the country with a special garland of flowers.