GrammarQuiz.Net > Present Perfect Tense
They are studying grammar right now
A. They has studied grammar
B. They have studied grammar
C. They have studied grammar right now
Complement vs. Compliment This, That, These, ThoseIts vs. It’s
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.