[ Modal Verbs ]
They live in a very big house.They____be rich.
A. must
B. may
C. have
D. should

Random Topics:
Conjunctions and CommasDo not- Does notModal Verb Gerund or To InfinitivePrepositionPresent Simple and Present Continuous TenseFuture - will / going to / present continuousVerbal PhrasesGerund vs InfinitiveArticle and Order of AdjctiveDaily Routines & TensesOther quiz:
Conjunctions › ViewYou can achieve many things _____________ you believe.
A. for
B. when
C. yet
D. because
Past Tense › View
He ______ his leg when he ______ off the horse.
A. broke, fell
B. had broken, had fallen
C. was broken, was falling
D. broke, was falling
Irregular Verb › ViewMy first car was good, but its insurance … (cost) so much.
- cost
- costed
- costs
Grammar › View
________ public transportation is cheaper, most people prefer driving their own cars.
A. Whereas
B. Until
C. If
D. Although
