[ Grammar and Vocabulary ]
People often … to avoid bad luck.
A. open an umbrella indoors
B. walk under a ladder
C. knock on wood

Random Topics:
Verbs & Verb TensesAdverb of MannerSimple Past vs Past Continuous Tensegoing toVocabullary TestPreposition after some VerbsAdverbial Clause / If / ComparativesPrepositions and Phrasal VerbsPast, Present, FutureSubject Verb Agreement and TensesOther quiz:
Prepositions › ViewThe vintage cars are going _____ the city as part of the National Day celebrations.
A. up
B. over
C. round
D. among
Present Continuous › View
The students ____________ a museum this friday.
A. visited
B. will visit
C. are visiting
