[ Prepositions ]
He was in contact with the base _______ the entire flight.
A. since
B. during
C. across
D. while

Random Topics:
Relative Clauses & Real ConditionalsTenses StructureCollective NounsWill vs Verb InfinitivesGerund and To InfinitiveComplex Sentences with Adverb ClausesRelative - ConditionalGrammar - to beUncountable NounsFormal & Informal WordsOther quiz:
Past and Past Continuous › ViewI was running ____________ I fell.
A. while
B. when
Grammar › View
Nobody cheated in the exam, ______?
A. did they
B. didn’t they
C. did he
D. didn’t he
Present Tense › ViewTanboy Kun is a famous mukbang youtuber. He likes ________ especially spicy food.
A. eat
B. eats
C. ate
D. eating
Grammar › View
Known by many people as the writer of Pygmalion, the career of George Bernard Shaw began in theater criticism.
A. NO CHANGE
B. the beginning of George Bernard’s professional career was in theater criticism.
C. being a theater critic was the beginning of George Bernard Shaw’s professional career.
D. George Bernard Shaw began his professional career as a theater critic.