Sorry, I’m late! How long ___?
A. have you been waiting
B. have you waited
Indefinite Pronoun Its vs. It’s Reported SpeechNumbersPast Simple (Questions)Verb to beComparative AdjectivesModal PerfectFuture Perfect Continuous
Other quiz: Action, Helping & Linking Verbs
The librarian finds book for students.
A. action verb
B. linking verb
C. helping verb
How to use : Read the question carefully, then select one of the answers button.