[ Verb Tense, Pronouns and Antecedents ]
Detection programs are available that searches for and then destroys computer viruses.
A. NO CHANGE
B. searches for and destroys
C. search for and destroys
D. search for and destroy

Random Topics:
Prepositions and Phrasal VerbsConditional TypesAntonymsFrequency AdverbsConjunctions and PrepositionsPresent Perfect and Past SimplePresent Perfect vs Past Simple TenseComparative and Superlative AdjectiveThird ConditionalTenses - Irregular VerbsOther quiz:
Countable Noun › ViewThe plants need __________ more water
A. Any
B. A little
C. a few
Grammar and Vocabulary › View
I’ve ……. forward the meeting to this week.
A. brought
B. put
C. gone
Grammar › ViewThe coffee is ____________ (hot) for me to drink.
A. hot enough
B. too hot
C. hot too
D. enough hot
Tenses › View
While I ____ to the station, I realised I’d forgotten my ticket.
A. walked
B. am walking
C. was walking
D. had walked
