From the words lettered A to D, choose the word that best completes each of the following sentences. Our tour of the tower came to an end all.............. ...

From the words lettered A to D, choose the word that best completes each of the following sentences.
Our tour of the tower came to an end all.............. soon

Answer Details

The correct answer is "too." In the sentence, "all too soon" means that the tour of the tower ended quickly or abruptly, before the speaker wanted it to. "Too" indicates that the end of the tour was earlier than expected or desirable.