They had been walking _____ 2 hours when it started to rain.
A. since
B. for
C. in

Random Topics:
Past Simple VerbsSuperlative AdjectivesConditional SentencesVocabulary Spelling GrammarAdjective ending with ED & INGAdverbial Clause of Cause and EffectPassive Modals, Impersonal PassiveSpeech Tensesanother/the others/each other/one anotherConnectivesOther quiz:
Past Perfect Tense › ViewMy sister washed up the plates after she _____ (have) her lunch.
A. have had
B. has had
C. have
D. had had
Passive Voice Tenses › View
. What is the main difference between active and passive voice?
A. In active voice, the subject performs the action; in passive voice, the subject receives the action.
B. In active voice, the subject receives the action; in passive voice, the subject performs the action.
C. Active voice is used for questions, while passive voice is used for statements.
D. Active voice is more formal than passive voice.
Prepositions › ViewShe smiled________hom happy.
A. at
B. with
C. to
D. about
Conjunction › View
Identify the conjunction in the sentence: I like to read books and watch movies.
A. but
B. or
C. so
D. and