[ Past Perfect and Past Perfect Continuous Tense ]
The staff _______ ___________ ___________ lunch for the special guests since 8 a.m.
A. had been preparing
B. must have prepared
C. would have prepared
D. could have been preparing

Random Topics:
Question TagsDemonstrative PronounParticiple Clauses & Cleft SentencesKinds of NounsPast Simple, Past Continuous, Past PerfectSo / Neither / Either / TooModals of PredictionAsking and Giving Opinion-ing &-ed AdjectivesAdverb Of PlaceOther quiz:
Tenses › ViewOur friends ________ meet us at the airport tonight.
A. are
B. are going to
C. go to
D. will be to
Tenses › View
Use the correct form of the verb in parentheses: “I ______ to your party if you really want me to.” (come)
A. come
B. came
C. will come
D. coming
Modals and Adjectives (ed-ing) › ViewShe _____ have left her phone at the office, I’ll call and check.
A. Must
B. Can
C. Could
D. Would
Phrasal Verbs › View
Having that accident has brought ____ a complete change in his attitude to other people.
A. in
B. about
C. up
D. out
