Which coordinating conjunction should be used to connect these independent clauses? My sister wanted ...

Which coordinating conjunction should be used to connect these independent clauses? My sister wanted to become a nurse anesthetist, _____ after working as a nurse for two years, she applied to several schools, hoping to get accepted into a program..
 
  a. so
 b. for
 c. yet
 d. nor

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Ques. 2

Which of the following simple sentences is incorrect?
 
  a. Neither his mother nor his father is prepared for him to enter the army.
 b. Her sister and her brother are visiting and are taking her out for her birthday.
 c. Tyson's motorcycle, car, and truck is going to need repairs.
 d. Tania's roommate studied for an hour, worked out at the gym, and then took a nap.

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Ques. 3

When considering a choice of topics for a research report, you should be sure that
 
  a. the topic is well suited to your interests and is neither too broad nor too specific.
  b. you can find enough information about the topic.
 c. you have enough time to research and write about this topic.
 d. all of the above

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Ques. 4

Which of the following is not correct?
 
  a. twenty-five
 b. well-adjusted child
  c. grade-A eggs
 d. father-in-law

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Ques. 5

Which of the following sentences is not correct?
 
  a. All I need is the one thing I can't gettime.
  b. All I need is the one thing I can't get, time.
  c. All I need is the one thing I can't get: time.

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Ques. 6

Which of the following sentences is not correct?
 
  a. Congress's proposal will affect all lower-, upper-, and middle-class workers.
 b. Congress's proposal will affect all lower-class, upper-class, and middle-class workers.
  c. Congress's proposal will affect all lower, upper, and middle class workers.

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Ques. 7

Which of the following sentences is correct?
 
  a. The election was over; however, the votes had yet to be counted.
  b. The election was over however; the votes had yet to be counted.
  c. The election was over, however, the votes had yet to be counted.

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Ques. 8

Which of the following sentences is correct?
 
  a. The meeting included Jane, the president, John, the treasurer, and Alexis, the secretary.
  b. The meeting included: Jane, the president, John, the treasurer, and Alexis, the secretary.
  c. The meeting included: Jane, the president; John, the treasurer; and Alexis, the secretary.