1. Eat (1) __________ fruits and vegetables in your daily diet.
   Correct answer: A. The
   Explanation: "The" is used here because we are referring to specific fruits and vegetables, which are part of the known, general category.

2. Make sure to look (2) __________ the food labels before purchasing.
   Correct answer: D. on
   Explanation: "Look on" is the correct preposition to use with "look" when referring to reading or inspecting something on a surface (in this case, food labels).

3. (3) __________ a variety of foods to get all the nutrients you need.
   Correct answer: C. Mix
   Explanation: "Mix" fits here, as it suggests combining different types of foods for a balanced diet.

4. Be (4) __________ about your eating habits for better health.
   Correct answer: A. Careful
   Explanation: "Careful" is the correct adjective to use when describing how you should be with your eating habits.

Announcement 2:

1. (1) __________ VOCABULARY IN ENGLISH
   Correct answer: A. The
   Explanation: "The" is used because the topic of "vocabulary in English" is specific, and we are talking about it in a general, definite way.

2. Question 2. (2) __________ under
   Explanation: The correct preposition here would depend on the full context of the sentence, but "under" is a common choice when referring to something that is below or part of a category.

3. Question 3. (3) __________ Cook
   Explanation: This likely refers to a verb or command, so "Cook" would make sense as part of the sentence's instruction or direction.