[ Grammar ]
______ United States working on global warming?
A. Is
B. Are

Random Topics:
Verbs + Infinitives / GerundsRelative - ConditionalVerb Tenses and Subject Verb AgreementAdverbs and Adverbial PhrasesAdverbs or AdjectivesThe Future Simple TensePresent Simple x Present ContinuousHabitual and Continuous TensesVerb ConjugationGrammar and StructureOther quiz:
Grammar › ViewI ________ big ears.
A. have
B. has
Grammar - Similes › View
Grandfather’s old car looks ________ the stars. He bought it when he was 17 years old.
A. as new as
B. as neat as
C. as ancient as
D. as dead as
Future Tenses › ViewIf you decide to come by this afternoon, don’t knock as I _______ in the back garden so I won’t hear you.
A. will probably be sitting
B. will sit
Tenses › View
John __________ (not like) studying English.
A. doesn’t like
B. didn’t like