[ Expressing Obligation and Modals ]
Choose the correct option to complete the sentences:
Companies ___________ invest in technology to communicate with customers online.
A. have to
B. mustn’t

Random Topics:
Present Perfect and Present Perfect ContinuousLet & Be allowed toDemonstrative Pronouns and Verb TensesComparatives and Past Perfect TenseGive, do and makePossessive Adjectives & Possessive PronounsPrepositions and AdverbsPreposition of PlaceUnreal ConditionalsPast Continuous vs Past SimpleOther quiz:
Grammar › ViewShe will be busy working that evening so she ____ come to the party.
A. can’t
B. hasn’t
C. don’t
D. has
Grammar › View
There __________ a swarm of bees over there last night.
A. are
B. is
C. was
D. were
Tenses › ViewI ______ to the gym every day last month.
A. have been going
B. went
C. was going
D. had gone
Grammar › View
Lillian teaches English, and ____ her cousin, Amy.
A. do too
B. also does
C. so do
D. so does
