Which of the following sentences does not use the correct modals.

A. I swim across the river when I was young.

B. It may rain next Friday

C. I expected that I would get a first class

D. One ought to respect the environmental laws

E. This used to be a dense jungle.

Choose the correct answer from the options given below:

A only

The correct answer is Option (2) - A only

Explanation:

A. I swim across the river when I was young. ❌

• Incorrect → should be "I could swim across the river when I was young" (ability in the past).

B. It may rain next Friday. ✅

• Correct use of may (possibility).

C. I expected that I would get a first class. ✅

• Correct use of would (future-in-the-past).

D. One ought to respect the environmental laws. ✅

• Correct use of ought to (moral duty/obligation).

E. This used to be a dense jungle. ✅

• Correct use of used to (past habit/state).