Which of the following is not a synonym for '$speculate^{\prime}$?

1.Fill in the blank with the most appropriate option. Even though the former boss has always been rude with me, I do not hold any more — against him.

2.Fill in the blank with the most appropriate option. The CEO suddenly resigned — rumors of misconduct.

3.Fill in the blank with the most appropriate option. The verb form of the word '$prison^{\prime} is$ —.

4.Fill in the blank with the most appropriate option. The — of the moon on the river never fails to amaze us.

5.Fill in the blank with the most appropriate option. Nuclear energy is — dangerous to be used widely.

6.Fill in the blank with the most appropriate option. Arriving late at a meeting is rude, and shows — other people's time.

7.Fill in the blank with the most appropriate option. If his friend had not helped him, Arif — it really difficult to complete the assignment.

8.Fill in the blank with the most appropriate option. For myself, I chose the cheapest dish on the menu — mutton chop.

9.Fill in the blank with the most appropriate option. Raha will be going to the US, — she?

10.Fill in the blank with the most appropriate option. Those who are vulnearable are —.

11.Which of the following words has been properly spelled?

12.What is the antonym of the word '$pernicious^{\prime}$