单选题 In reality, _______ businesses should never use email or text messages to ask for your personal information.

单选题 Some people want their children to be able to _____ in science during their high school years.

单选题 What was meant to be a bonus for him became a point of _________ between him and the company.

单选题 If your career is at the top of your ______ list, you might have little time taking care of your children.

单选题 In recent months, he canceled many ______ and two days ago announced that, on his doctor’s advice, he was retiring as a teacher.

单选题 When you are writing, you should make sure that your essay is clear, ______, and accurate.xzyan

单选题 He studied graphic arts for a year to please his parents but then __________ to his favorite: fashion.

单选题 The development of the backboned animals is one of the most fascinating parts of the story of ______.