He didn’t come last night. I wish that he….
a, an, the, Zero ArticleIts vs. It’sSit vs. Set
Next quiz: Grammar
A new flu vaccine _____ in the USA.
A. Has been found
B. Has been finding
C. Is found
D. Has found
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.