Fill in the blank to complete the conversation.
A : What are you doing tonight ?
B : I'm not sure, I _____ to the cinema.

A. ‘ll go
B. Would go
C. Might go
D. Have go

Hint:We will observe the given sentence carefully. The second dialogue B suggests a state of a doubt about one’s schedule for the night. Therefore, we will choose an option that justifies the sense of the dialogue. The options comprises modal verbs with the verb ‘go’. We will choose a modal verb which can be used to express that we are unsure.

Complete answer:
Let us analyse each option individually to figure out the correct answer.

‘ll go: The modal verb ‘will’ is used to predict the course of an occurrence with a sense of surety or evidence of its occurrence. This option doesn’t fit the given dialogue as the dialogue lacks the sense of surety. Therefore, this is not an appropriate option.

Would go: The modal verb ‘would’ also refers to future events but under specific conditions. Also, would can be used to refer to a past event also. This option doesn’t express the sense of the given dialogue. Therefore, this is not the correct option.

Might go : The modal verb ‘might’ refers to an event which is likely. There is a possibility of it to happen but no surety. This option fulfils the need of the given dialogue. Therefore, this is the correct option.

Have go: The modal verb ‘have’ refers to a sense of hold or possession , make happen something. This option doesn’t add the required sense of meaning to the given dialogue. Therefore, this is an incorrect option.

Hence, the correct answer is Option ‘C’.

Note: The final dialogue after the answer becomes A : What are you doing tonight ?
B : I'm not sure, I might go to the cinema. This expresses that the speaker B is not sure of his programme for the night. He may or may not go to the cinema. It depends on certain circumstances.