Question

Fill in the blank with suitable modal.
I am sure we ______ succeed.
A) Should
B) Will
C) Shall
D) Could

Answer 1

Hint:A Modal verb is a type of verb that is used to indicate modality i.e.: likelihood, ability, permission, request, capacity, suggestions, order, obligation, or advice. Modal verbs always accompany the base form of another verb having semantic content.

Complete answer:
Option A) Should – is an incorrect answer because the meaning of ‘should’ is ‘used to indicate obligation, duty, or correctness, typically when criticizing someone's actions’ and this does not suit well in the blank and make the sentence senseless. Thus, this is an incorrect answer.
Option B) Will – is the correct answer because ‘will’ is used to express the future tense and this sentence ‘I am sure we ______ succeed’ also indicates future tense. So, the use of will is totally correct and makes sense in the blank. So, this is the correct answer.
Option C) Shall – is an incorrect answer because ‘shall’ is in the first person and is used for expressing the future tense but shall is not applicable here. We use shall in the sentence like: I shall go to the beach if it’s sunny outside. And the use of shall in the given sentence is incorrect.
Option D) Could – is an incorrect answer because ‘could’ is used to make the possibility or making suggestions or making polite requests. And the use of could is incorrect here. We use ‘could’ in the sentence like: How could he blame her? Thus, this is an incorrect answer.

The right answer to this is option (B).

Note:The given sentence is in the future tense so ‘will’ is the right answer. Because other modals do not fit here. The modal verbs are used to express ability, possibility or permission and there are certain rules of modals and they are: 1: use of modal verb as is i.e. do not change its form and turn into present, future and past. 2: Use the base form of the verb after modal. 3: suppose if we need modal in the negative form then always use ‘not’ after the modal verb. So, option B is the most appropriate answer as compared to any other option.