[ Grammar ]
They almost look the same. They ________ be twins.
A. must
B. can
C. may
D. should

Random Topics:
Sentence StructureConditional Sentence Type 2 and Type 3Speech TensesVerb TenseFirst Conditional, Future Time ClausesPresent Simple Tense Passivetake, make, doModals in the Past - Speculation and DeductionTenses and ConclusionsDegree of ComparisonOther quiz:
Prepositions › ViewEither we will go to Florida for vacation, ____________ we will go to New York.
A. And
B. But
C. Or
D. Therefore
Distinguishing Future Tenses › View
Would you like … peanuts?
A. a few
B. a little
Present Tenses › ViewMy brother sometimes ______________ swimming at the weekend.
A. going
B. goes
C. go
Grammar › View
Choose the correct sentence in present continuous (be + verb + -ing)
A. I am making a cake for the birthday
B. I making a cake for the birthday
C. I make a cake for the birthday