Identify the one underlined word or phrase that must be changed to make the sentence correct.

Question

21. On (A) the way home, we saw a lot of (B) men, women, and dogs which (C) were playing in (D) the park.

 

22. Unless (A) you pour (B) oil on (C) water, it will float (D).

Answer 1

21. C

On the way home, we saw a lot of men, women, and dogs that were playing in the park.
22. A

If you pour oil on water, it will float.

Answer 2

21. C: which -> that

22. A: Unless -> If