Which of the following sentences is an example of mixed construction?
A. I learned Spanish while my friend tried to learn Chinese.
B. Alex was busy preparing for his exams, so his wife went shopping alone.
C. The children are busy studying because they have a test tomorrow.
D. The teacher graded the test and students were given the scores.
E. After the test, the students went to watch amovie.
Choose the sentence that avoids the use of cluttering phrases.
A. At the present time we are using the old model.
B. You will get your money in the near future.
C. The revised plan cut our production costs by 12 percent.
D. In the event that you fail, we will help you.
E. We made payment in the amount of $751.