[ Modals ]
Which of the following sentences is grammatically correct?
A. You should to study harder
B. You should not to study harder
C. You should study harder
D. You should studying harder

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Linking WordsSynonymGrammar - ConnectorsAdjectives & PrepositionPreposition FormWish clauseMoods of GrammarPronouns and Subject Verb AgreementModal Auxiliary VerbsPast ModalsOther quiz:
Grammar › ViewYou said you would …….
A. would you?
B. did you?
C. had you?
D. didn’t you?
Adjective Clause › View
A friend of mine …….. we talked helped me do my homework.
A. Whom
B. From whom
C. To whom
D. Whose
E. Why
My brother ________ in San Diego up until last year.
A. was lived
B. has lived
C. was living
Tenses Usage › View
By 2030, many countries _____ carbon neutrality goals.
A. achieve
B. will achieve
C. will have achieved
D. had achieved