[ Relative Clause ]
As a university student, you should know____to use a library very well.
A. how
B. whose
C. that
D. which

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Auxiliary VerbsGerunds and ModalsModals and Past TensesSubject and Verb AgreementPRESENT SIMPLE vs PRESENT CONTINUOUS + QUANTConditionals (0 - 1 - 2)Comparatives ( adj/ adv)Present / Future / Present Progressive / non Action Verbs1st and 2nd ConditionalsInversions and SubjunctiveOther quiz:
Homonyms › ViewDo you really ___ the money?
a. knead
b. kneed
c. need
Request with Modal Verbs › View
____ I use your bathroom?
A. Is it Ok if
B. Would
C. Do you mind
Adjectives › ViewThe pain was ……. than he could bear.
A. much
B. more
C. most
Present Simple and Modal Verbs › View
. You ___ wear a hat in class.
A. can’t
B. may
C. must
D. can