[ 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:
Subordinating Conjunctions › View__________ she was such a good student, everyone recognized her daily effort.
A. as
B. as long as
C. once
D. whether
Grammar › View
Yesterday, I_______ to school.
A. walking
B. walk
C. walked
D. will walk
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
