GrammarQuiz.Net > Future Perfect Continuous Tense
The construction workers … for more than 90 minutes when the bell ring.
A. wouldn’t have been sleeping
B. won’t have been sleeping
Verb Phrase Transition Words And Phrase Gerund vs. Infinitive
How to use : Read the question carefully, then select one of the answers button.
Tips : If this page always shows the same questions, make sure you correct the question first by pressing the "check answer" button.