Question

3. When the bell rings, the students
(go) to their classrooms.
4. If she works hard, she
(get) good marks.
......​

Answer 1

When the bell rings, the students will go to their classrooms.

If she works hard, she will get good marks.

Answer 2

1. When the bell rings, the students go to their classrooms.
2. If she works hard, she will get good marks.

• We were supposed to fill in the blanks with the correct form of the verbs.
• On observing the given sentences, we can say that the first sentence must be in the present indefinite tense while the second sentence must be in the simple future tense.
• Here the correct forms of the verbs will be "go" and "will get" respectively.
• Present indefinite tense is used when we want to show that an action happens in the present on a habitual basis.
• The simple future tense is used when we want to show that an action will happen in the future.