[ Sit vs. Set ]
To avoid back pain you should ___ straight.
a. set
b. sit
c. seat

Random Topics:
Unreal ConditionalsPerfect and Past TenseAdjective Clause and Adverb ClauseSuperlative & Comparative AdverbsSynonym and AntonymArticles A and AnRelative Pronouns and AdverbsAdverb of MannersComplex PrepositionsPresent Perfect and Present Perfect ContinuousOther quiz:
Grammar › ViewAt work I often _______________ to the radio.
A. hear
B. watch
C. look
D. listen
Noun › View
She plays sand. The word sand is ….. noun.
A. uncountable
B. countable
C. single
Grammar › ViewChildren _________ respect their parents.
A. should
B. shouldn’t
C. must
D. mustn’t
Grammar › View
The book is missing ____________________ cover.
A. it’s
B. its
