[ Second Conditionals ]
If cars were not invented, it would ______ difficult to travel.
A. was
B. were
C. be
D. is

Random Topics:
If ClausesModals: Possibility, Necessity, ExpectationComparison and ModalsVerb AgreementNoun, Adjective, and Adverb ClausesVocabularyPhrase vs ClauseArticles & QuantifiersModals of Advisabilityused to vs be used to vs get used toOther quiz:
The First Conditional › ViewJoe …… happy if she …… .
A. Is, will come
B. Is, come
C. Will be, comes
Conditional Sentences › View
If she ____ harder, she will pass the exam.
A. study
B. studies
C. studied
D. studying
Grammar › ViewWe _______ a lot of sweets yesterday.
A. ate
B. had eat
C. have eaten
Grammar › View
James Robert (build) it in Las Vegas in 1876.
A. building
B. built
C. builds
D. builded