Subjects and Markers

What would be a good discourse marker to begin a conversation?

Is this true or false?: We usually use 'Right' to confirm an idea

Write the correct dummy subject to complete this: _____ has been a lot of hope for a vaccine to be available

Write the correct dummy subject to complete this: _____ has been nice to work with you along these past few months

Would 'okay' function as a discourse marker to continue with a conversation?

Select the correct discourse marker to complete this: ____ ______ to my first idea, I would also like to say that Physiotherapy is useful for patients

Select the correct discourse marker to complete this: ______ are some patients to help at the clinic

Select the correct for of 'to be' to complete this: There _____ many students at the English lesson yesterday

Select the correct form of 'have' to complete this: It _____ been very difficult for people to stay home for long

Select the correct form of 'to be' to complete this: There will _____ some patients to visit at home next week

Select the correct form of 'have' to complete this: There ____ been seven different subjects to study this semester

What would be a good discourse marker to end a written piece of text?