Question

There is a mistake in the sentence below. Find it and correct it. (записуємо повне речення)
He didn’t study very hard; he did well in the exams although.
Something must do to help save the environment.
All the furniture in my room bought from the same shop last year.

Answer 1

He didn’t study very hard; (no mistake) he did well on the exams, although. (on, a comma) ((preposition and punctuation))

Something must be done to help save the environment. (be done) ((adjective))

All the furniture in my room were bought from the same shop last year. (was bought) ((passive voice))