[ Prepositions of Time ]
________ the 21st century.
A. in
B. on
C. at

Random Topics:
Verbs & AdverbsPast Simple or Past ContinuousGrammar of Conjunctions and PrepotitionsAdjectives-Comparison, SuperlativeFuture Simple TensesSimple Present Continuous TenseHope, Thank, Modal VerbsPresent/Future/Past Simple/Present PerfectGerunds and InfinitivesVocabulary and DefinitionsOther quiz:
Conditionals › ViewChris wouldn’t have been dating Lucy
A. If he’d been faithful with Mia
B. If he weren’t faithful with Mia
C. If he didn’t date Mia
Grammar › View
To drive a car safely it is ________ good brakes.
A. essential with
B. essential having
C. essential to have
D. essential have
Grammar › ViewIs / it isn’t
A. Yes, you are.
B. Yes, it is
C. Yes, I am.
D. Yes, I am.
Prepositional Phrases › View
You can ask … assistance in shops.
A. for
B. —
C. by