[ If/Unless - Conditional type 1 ]
You should not swim in the river ___ you are a good swimmer.
A. unless
B. if

Random Topics:
Narrative TensesCountable & Noncountable NounsTenses and StructureModal and Relative PhrasesIrregular AdjectivesIndefinite and Intensive NounComparisonsModals, Infinitives and GerundsComparison Degree & GerundsTOEICOther quiz:
Grammar › View_____women over there____my mom and my aunt.
A. Those / are
B. These / are
C. This / is
D. That / is
Present Progressive or Present Simple › View
We ________ lunch everyday.
A. eats
B. have
C. are eating
D. are having