Conditionals

If you heat water to 100 degrees Celsius, it ______.

• boil

• boils

• boiled

• will boil

Answer explanation

The correct choice is 'boils' because it describes a general truth: water reaches its boiling point at 100 degrees Celsius. The other options do not fit grammatically or contextually in this sentence.

If she studies hard, she ______ the test.

• will pass

• passed

• would pass

• passes

Answer explanation

The correct choice is 'will pass' because it indicates a future possibility based on the condition of studying hard. The other options do not fit the future conditional context of the sentence.

If I ______ a million dollars, I would buy a big house.

• will have

• have

• would have

• had

Answer explanation

The correct choice is 'had' because it indicates a hypothetical situation in the past. The sentence suggests that if the speaker had a million dollars, they would buy a big house, which aligns with the conditional structure.

If he ______ the train, he would have been on time.

• has caught

• had caught

• caught

• catches

Answer explanation

The correct choice is 'had caught' because it uses the past perfect tense, indicating a hypothetical situation in the past. The sentence implies that if he had caught the train, he would have arrived on time.

If a certain metal is heated to its melting point, it _____ (change) from solid to liquid.

• changes; because it states a scientific fact that is always true.

• will change; because it predicts what will happen in the future.

• would change; because it describes a hypothetical situation.

• is changing; because it explains an ongoing process

Answer explanation

The correct choice is 'changes' because it states a scientific fact that is always true: when a metal reaches its melting point, it always changes from solid to liquid.

If the government _____ (implement) stricter environmental policies, carbon emissions will decrease significantly.

• had implemented; because it refers to a past possibility

• implements; because it describes a possible future scenario based on a present action.

• implemented; because it reflects a hypothetical situation.

• will implement; because it predicts the government's future action.

Answer explanation

The correct choice is 'implements' because it describes a possible future scenario based on a present action. This indicates that if the government takes action now, it will lead to a decrease in carbon emissions.

If I _____ (be) the president of the country, I would prioritize education reform."

• am; because it states a current possibility.

• was; because it refers to a past event.

• were; because it imagines an unreal or hypothetical scenario.

• have been; because it reflects a factual situation.

Answer explanation

The correct choice is 'were' because it imagines an unreal or hypothetical scenario. The phrase suggests a condition that is not currently true, aligning with the subjunctive mood used for hypothetical situations.

If they _____ (prepare) better, they would have won the debate."

• would prepare; because it reflects an imagined present situation.

• prepare; because it shows a possible present action.

• will prepare; because it predicts a future action.

• had prepared; because it refers to a past hypothetical situation with an unrealized result.

Answer explanation

The correct choice is 'had prepared' because it indicates a past hypothetical situation that did not happen, leading to an unrealized result in the debate.

Compose a sentence that showcases your creative prowess by employing at least one of the four English conditional tenses (zero, first, second, or third)