Answer: B) Is working.
Explanation for this question is being written.
Answer: A) Yes, the sentence is correct.
Answer: B) Goes
Answer: A) Is
Answer: B) Were
Answer: A) Was
Answer: B) Have
Answer: A) Has
Answer: B) Are
Answer: C) Correct because the plural verb 'are' agrees with the plural noun 'tulips.'.
Answer: B) Has
Answer: C) Both are possible.
Answer: A) Have
Answer: C) Has
Answer: B) Is
Answer: C) Is
Answer: D) Have
Answer: A) True
Answer: A) A
Answer: D) Change "century" to "centuries".
Answer: A) Are
Answer: D) Goes
Answer: A) Don't
Answer: A) Belongs
Answer: C) Are
Answer: A) Require
Answer: C) Are under the age of 15.