Quiz on First Conditional and Unless

Which of the following is the correct structure for the first conditional?

• If + past simple, will + base verb

• If + present simple, will + base verb

• If + present perfect, will + base verb

• If + past perfect, will + base verb

Answer explanation

The first conditional structure is 'If + present simple, will + base verb'. It expresses a real possibility in the future. The other options use incorrect verb forms for this conditional type.

What type of situations does the first conditional typically describe?

• Impossible situations

• Real possibilities in the future

• Past regrets

• General truths

Answer explanation

The first conditional describes real possibilities in the future, indicating that if a certain condition is met, a specific outcome is likely to occur. This makes 'real possibilities in the future' the correct choice.

In the sentence "If it rains tomorrow, I will stay at home," which part is the main clause?

• If it rains tomorrow

• I will stay at home

• If it rains

• tomorrow, I will stay at home

Answer explanation

The main clause in the sentence is "I will stay at home" because it expresses the main idea or action that will occur if the condition "If it rains tomorrow" is met.

Which sentence correctly uses the first conditional?

• If I will study hard, I pass the test.

• If I studied hard, I will pass the test.

• If I study hard, I will pass the test.

• If I study hard, I would pass the test.

Answer explanation

The correct sentence is 'If I study hard, I will pass the test.' This uses the first conditional, which expresses a real possibility in the future. The other options either misuse verb forms or the conditional structure.

What does "unless" mean in conditional sentences?

• Only if

• If not

• As long as

• Even if

Answer explanation

In conditional sentences, "unless" means "if not." It introduces a condition that negates the statement, indicating that the result will only occur if the specified condition is not met.

Which sentence correctly uses "unless"?

• Unless it rains tomorrow, we will go to the park.

• Unless it will rain tomorrow, we go to the park.

• Unless it rained tomorrow, we will

Answer explanation

The correct sentence is "Unless it rains tomorrow, we will go to the park." It properly uses "unless" to indicate that going to the park is conditional on it not raining.

As soon as the movie (a)   (end), we will go home.

Answer explanation

The correct choice is 'end' because it is in the base form, which is needed after 'will' to indicate a future action. The sentence correctly states that we will go home after the movie ends.

When summer (a)   (come), we will go to the beach.

Answer explanation

The correct form is 'comes' to match the subject 'summer' in the present tense. The sentence should read: 'When summer comes, we will go to the beach.' The verb must agree with the singular subject.

After she (a)   (finish) her chores, she can play outside.

Answer explanation

The correct form is 'finishes' to match the subject 'she' in the sentence. The verb must be in the third person singular form after 'she'.

Unless it (a)   (snow), school will be open tomorrow.

Answer explanation

The correct choice is 'snow' because the sentence requires the subjunctive mood. It implies that school will be open unless it snows, indicating a condition that is not currently true.