Question

1.Many Canadian citizens who live in Montreal speak/speaks French.

2.She speak/speaks highly of the new president of the company.
3.Grace usually sleep/sleeps longer than her sister.
4.Newborn babies sleep/sleeps for 16 to 17 hours a day.
5.Jorge suffer/suffers from chronic back pain.
6.People with Alzheimer's disease suffer/suffers from memory loss.

Answer 1

1 speak

2 speaks

3 sleeps

4 sleep

5 suffers

6 suffer

Answer 2

1) speak

2) speaks

3) sleeps

4) sleep

5) suffers

6) suffer