How could the following sentence be rewritten as an interrogative sentence? we will be there by seven o'clock. we will be there! you will be there by seven o'clock. we will be there by seven o'clock. will we be there by seven o'clock?

An interrogative sentence is a kind of sentence that asks a question and usually ends with the punctuation mark, question mark (?). The given sentence above can be rewritten as an interrogative sentence into: Will we be there by seven o'clock? The correct answer would be the last option. This is the only sentence that asks a question and ends in a question mark.