TASK DEFINITION: In this task, you are given a question containing a blank (_) and two options. You should pick the best option to answer the question. Please answer with "A" or "B".
PROBLEM: Sarah was constantly feeling dizzy but not Betty because _ did not have symptoms of vertigo. (A) Sarah (B) Betty

SOLUTION: B

PROBLEM: When Betty gave a speech, Christine laughed and heckled. The teacher gave _ a prize. (A) Betty (B) Christine

SOLUTION: A

PROBLEM: After the wood play house fell down at the park it was replaced with a metal one, the _ was unstable. (A) metal (B) wood

SOLUTION:
B