[ Grammar ]
Today, USB is the most ___ port on a computer.
A. usable
B. useful

Random Topics:
Passive Voice, Modals of Deduction and First ConditionalRelative PronounsContinuous and Perfect TensesModal Auxiliaries and Similar ExpressionsAdjectives with PrepositionTenses - AuxiliariesPhrasal VerbQuantifierProgressive Verb TensesSimple Present - WH QuestionsOther quiz:
Grammar › ViewMonserrat and Debora ________ about the next conversation club.
A. talked
B. was talking
C. doesn’t talk
Grammar › View
______________ any milk in the fridge?
A. Is there
B. Are there
Prepositions › ViewMy apartment building is ___ the corner.
a. in
b. on
c. at
Tenses › View
They__japan two years ago.
A. Leave
B. Left
C. Is leaving
D. Have left
