Question

(B) Correct the following (4)

1. I finished my work by 6’O clock

2. The boys made a noise when he entered the class.

3. It started raining before we left the office.

4. I am writing letters for half an hour.​

Answer 1

Answer:

1) within

2) were making

3) after

4)since

Explanation:

1) I finished my homework within 6'O clock.

2)The boys were making noise when he entered the class.

3)It started raining after we left the office.

4) I am writing a letter since half an hour

Please mark it brainliest.