[ Prepositions ]
You won’t succeed ___ you try your best.
A. if
B. unless
C. when
D. while

Random Topics:
Gerunds and ModalsNeither/Either/All/NoneGrammar - Place and MovementPast and Past ContinuousIf ClausesPassive to ActivePresent Progressive TenseUnless If First ConditionalPresent Simple ProgressiveVerb ConjugationOther quiz:
Present Tenses › ViewI ___ well lately. And I am still sick now.
A. don’t feel
B. haven’t been feeling
C. am not feeling
D. hasn’t felt
Grammar › View
The teacher will take action _____ a pupil not complete his homework.
A. will
B. shall
C. would
D. should
Gerund and Infinitive › ViewI’m really interested in ___ (interview) that artist because of his amazing work.
A. interviewing
B. interview
C. to interview
D. interviewed
Some vs. Any › View
I need … … chocolate to make a cake.
a. some
b. any
