[ Expressing Obligation and Modals ]
Choose the correct option to complete the sentences:
Companies ___________ look after existing customers carefully because it is expensive to get new customers.
A. need to
B. don’t have to

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Synonyms and VocabularyModals - Conditionals - Future TensesTenses & PassivePresent simple, Present continuous, Singular, PluralAdjectives and VocabularyAdjective ClausesAdverbs (manners & modifiers)Used to - Would - TensesAdverbial Clause of ConcessionTimeOther quiz:
Grammar › ViewRead and complete: I’ve _____ the piano.
A. Play
B. Played
C. Playen
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He ______ very tall for his age.
A. is
B. run
C. feels
D. work
Modals of Prediction › View______ I go to your house tonight?
A. Might
B. May
C. Will not
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Daley works in a bar _____ Saturday evenings.
A. on
B. in
C. at
