[ 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 › ViewMy son has a plan. He _______ be a famous politician.
A. is going to
B. will
C. doesn’t
Vocabulary › View
Clear (someone) of blame or suspicion.
A. deplore
B. raze
C. vindicate
D. figure head
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
