4 A: I'm exhausted, B: Me too. I wonder if David
(come) to help tonight.
5 A: Are you going to visit Aunt Mabel this afternoon?
B: Yes, 1
..(visit) her before

(do) the shopping.
6 A: Is George going to eat dinner with us?
B: No, by the time he
(get)
home
(be) very late.
7 A: When
(you/pay) the rent?
B: When I
(get) my pay cheque.
8 A: What are your plans for the future?
B: I want to go to university after I.
(finish) school.
(pay) for dinner, I
(pay) for the theatre.
B: Okay, that's a good idea.
10 A: Can you give this message to Mike, please?
I'll but I doubt if I
.
9 A: If you
li

4 A: I'm exhausted, B: Me too. I wonder if David is going to come to help tonight.
Explanation: In this conversation, A expresses their exhaustion and B agrees. A then wonders if David will come to help tonight.

5 A: Are you going to visit Aunt Mabel this afternoon?
B: Yes, I will visit her before doing the shopping.
Explanation: A asks if B has plans to visit Aunt Mabel and B confirms that they will do so before going shopping.

6 A: Is George going to eat dinner with us?
B: No, by the time he gets home, it will be very late.
Explanation: A asks if George will join them for dinner and B responds that he won't, as he will arrive home very late.

7 A: When will you pay the rent?
B: I will pay the rent when I get my pay cheque.
Explanation: A asks about the time of rent payment and B states that they will do so when they receive their pay cheque.

8 A: What are your plans for the future?
B: I want to go to university after I finish school. I will pay for dinner, and I will pay for the theatre.
Explanation: A inquires about B's future plans and B reveals their intention to attend university after completing school. B also mentions that they will take care of the expenses for dinner and the theatre.

9 A: If you like, I can pay for dinner, but I doubt if I can pay for the theatre.
Explanation: A offers to pay for dinner, but expresses uncertainty about being able to cover the cost of the theatre.

10 A: Can you give this message to Mike, please?
B: I'll do it, but I doubt if I will see him.
Explanation: A asks B to deliver a message to Mike and B agrees, but expresses doubt about being able to see him.

Explanation for the use of verb tenses:
- "is going to come" is used to express a future action.
- "will visit" indicates a future action.
- "gets" and "will be" are used to talk about future events.
- "will pay" is used to express a future action.
- "finish" is used in the simple present tense to talk about a future plan.
- "can pay" and "will pay" express future possibilities or intentions.
- "can give" and "will see" are used to express future abilities or possibilities.