B1 - Expressing Certainty Quiz

Complete the sentence: "I’m ___ he’ll arrive on time."

• sure

• likely

• unsure

• maybe

Answer explanation

The correct choice is 'sure' because it expresses confidence about the statement. 'Likely' and 'maybe' suggest uncertainty, while 'unsure' directly indicates doubt, which contradicts the intent of the sentence.

What phrase shows the highest level of certainty? "She will ___ win the competition."

• definitely

• possibly

• maybe

• probably

Answer explanation

The phrase "definitely" indicates the highest level of certainty, meaning there is no doubt about her winning the competition. In contrast, "possibly," "maybe," and "probably" suggest varying degrees of uncertainty.

Choose the best option: "I am ___ that I left my keys at home."

• certain

• unsure

• doubtful

• confused

Answer explanation

The correct choice is 'certain' because the sentence implies a strong belief about leaving the keys at home. The other options suggest uncertainty or confusion, which do not fit the context.

Which phrase expresses full certainty? "There’s ___ that he will pass the exam."

• no doubt

• maybe

• a chance

• probably

Answer explanation

The phrase "no doubt" expresses full certainty about the outcome. In contrast, "maybe," "a chance," and "probably" indicate uncertainty or likelihood, not certainty.

Complete the sentence: "She is ___ the best candidate for the job."

• undoubtedly

• possibly

• uncertainly

• potentially

Answer explanation

The correct choice is 'undoubtedly' because it conveys certainty about her being the best candidate, while the other options suggest uncertainty or possibility, which do not fit the context.

Which word best fits here? "You will ___ enjoy the movie."

• absolutely

• possibly

• unsure

• perhaps

Answer explanation

The word 'absolutely' conveys strong certainty and enthusiasm, making it the best fit. It indicates that you will definitely enjoy the movie, unlike 'possibly' or 'perhaps', which suggest uncertainty.

What phrase expresses total confidence? "He will ___ be there tomorrow."

• for sure

• maybe

• could

• unsure

Answer explanation

The phrase "for sure" expresses total confidence in the statement. It indicates certainty about the person's presence tomorrow, unlike the other options which imply doubt or uncertainty.

Complete the sentence: "They will ___ finish the project by tomorrow."

• definitely

• possibly

• unlikely

• maybe

Answer explanation

The word 'definitely' indicates certainty, making it the best choice to complete the sentence. It conveys that they are sure to finish the project by tomorrow, unlike 'possibly', 'unlikely', or 'maybe', which suggest uncertainty.

Which option best fits? "I’m ___ we’ll get good news soon."

• sure

• likely

• hesitant

• doubtful

Answer explanation

The word 'sure' conveys confidence about receiving good news, making it the best fit. 'Likely' suggests possibility, while 'hesitant' and 'doubtful' imply uncertainty, which contradicts the positive expectation in the sentence.

Choose the phrase that indicates complete certainty: "There’s ___ she’ll succeed."

• no doubt

• a chance

• possibly

• maybe

Answer explanation

The phrase "no doubt" indicates complete certainty about her success, while the other options suggest uncertainty or possibility. Therefore, "no doubt" is the correct choice.