GrammarQuiz.Net > Prepositions
The computer technician is working ____________ the problem right now.
A. at
B. on
C. of
D. for
Reflexive Pronoun Interrogative Pronoun Intensive vs. Reflexive Pronoun
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.