Odd one out
100

Which word is different? Why.

Impressed

Convincing

Intrigued

Fascinated

Convincing

Present participle adjective, others are past participle adjectives.

200

Which word is different? Why?

Implied

Commented

Informed

Explained


Informed. 

Informed is transitive and must take a direct object. The others are intransitive and can't take a direct object.

300

Which verb phrase is different? Why?

Focus on

Interested in

Catch up

Belong to


Catch up.

Catch up is a phrasal verb. The others are verb + dependent preposition.

400

Which word / phrase is different? Why?

Namely

Regarding

In particular

To be precise


Regarding.

Regarding is introducing a topic. The others are being specific.

500

Which verb is different? Why?

Generate

Assess

Construct

Formulate

Assess. 

Assess is for judging. The others are related to creating.