[ Prepositions ]
The computer technician is working ____________ the problem right now.
A. at
B. on
C. of
D. for

Random Topics:
Grammar : Must (Necessity)Comparison DegreeGrammar-Present Continuous-Sentence MakingFuture SimplePresent Perfect & Past Simple TenseModals: Possibility, Necessity, ExpectationSimple Future - WillGrammar: Have toApostrophes and GrammarRelative Clauses and Past PerfectOther quiz:
Vocabulary › ViewAgreement between two or more sides in which each side gives up some of what it wants.
A. compromise
B. cabinet
C. bicameral
D. amendment
Grammar › View
My brother is older than _____.
A. me
B. I
C. my
D. mine
Grammar › View____ as the representative at the conference, she felt extremely proud of herself.
A. be chosen
B. having been chosen
C. on choosing
D. Having chosen
Conditional Sentences and Verb Form › View
Unless she_______, she’ll be late.
A. hurries
B. didn’t hurry
C. hurried
D. will hurry
