In the last sentence, what does It refer to?
Most of the searching performed on the internet utilises Boolean logic. Boolean logic refers to the logical relationships among search terms and is named after the British mathematician George Boole. It allows you to combine search terms using and, not and or.
A. the searching
B. the internet
C. Boolean logic
D. the logical relationships
Random Topics:
Question tag and + - AgreementAdverbs and Adverbial PhrasesUsed toTOEIC Grammar and Vocabulary ReviewSimple Past TenseModals AuxiliaryPossessive Adjective and PronounContinuous TenseDefinite and Indefinite ArticleFamily Members and Present SimpleOther quiz:
Future Tenses › View“Shouldn’t you be leaving for the airport?”
“No, my plane ______ in six hours.”
A. will have left
B. leaves
C. will leave
Modals › View
We didn’t have a test today so I ………………….. revised for it last night!
A. needn’t
B. didn’t have to
C. mustn’t
D. needn’t have
Mixed General Quiz › ViewThe Utah State Fair is ___ in Salt Lake City in September.
a. helds
b. hold
c. held
Phrasal Verbs › View
He came _ with a suggestion for increasing sales.
A. down
B. on
C. up
D. across