[ Preposition ]
Security checks have become really strict ………… the airport
A. on
B. in
C. at
D. for

Random Topics:
Past Continuous and Past Simple TenseGrammar and StructureGrammar - to be, possessive, have gotProgressive Perfect and Simple Verb TensesVerb Tenses and UsageCompound AdjectivesModal Verbs & Perfect InfinitiveHave toPassive Voice with Modal VerbsSentence Fragments and Complete SentencesOther quiz:
Grammar › ViewMary watched her mom ______into the kitchen five minutes ago.
A. went
B. to go
C. going
D. goes
Grammar › View
You have found your shirt but I can’t find _____.
A. my
B. me
C. mine
D. I