[ Grammar ]
Bob and Pamela (pack) their suitcases since 6 o’clock.
a) have been packing
b) have packed
c) having been packing

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Continuous TensesConstrative ConjunctionModal Verbs & Perfect InfinitiveIf ClausesAction, Helping & Linking VerbsConjunctions in Complex SentencesAsking and Giving OpinionConjunctions, Interjections and Sentence TypeSimple Present - WH QuestionsPrepositions and ArticlesOther quiz:
Modal Verbs › ViewWhat is the correct way to express prohibition with ‘must’ in the following sentence: ‘You ___________ drink plenty of water every day’?
A. must
B. can
C. could
D. should
Modals › View
Children _______________chat in class.
A. don’t have to
B. mustn’t
C. didn`t have to
Tenses › ViewTom ________ from Rome to Paris last Monday.
A. was flying
B. flew
C. flied
D. fly
Intensive vs. Reflexive Pronoun › View
The doctor introduced himself.
- intensive pronoun
- reflexive pronoun