Expressing opinions : I think, I believe, In my opinion

Q1. Which expression is the most formal way to introduce an opinion?

Q2. Complete the sentence: '... chocolate is the best dessert.'

Q3. Which sentence is NOT grammatically correct?

Q4. What is the correct punctuation after 'In my opinion' at the start of a sentence?

Q5. Which expression suggests the opinion is based on personal feeling or intuition?

Q6. Translate to English: 'Je pense que c'est une bonne idée.'

Q7. Complete the sentence: '... we need more time to finish the project.'

Q8. Which expression is often used to state a strong conviction?

Q9. What is a common synonym for 'In my opinion'?

Q10. Which sentence structure using 'I think' is correct?