[ Grammar ]
There are dozens of TV channels, ____________operate 24 hours a day.
A. some
B. some of which
C. some of those
D. some of them

Random Topics:
Determiners & QuantifiersIf ConditionalsComparative Adjectiveand, so, but, becauseModal VerbsTransitionsVerbs & AdverbsVOCAB & GRAMMARContractions and ConjunctionsPresent Simple Tense PassiveOther quiz:
Grammar and Vocabulary › ViewExcuse me, can you ___________________ me the way to the station, please?
A. give
B. take
C. tell
D. say
Grammar › View
She …………… to study
A. need
B. needs
C. start
D. begin
Grammar › View……….Amazon River is in Brazil.
A. The
B. a
C. –
D. an
Gerund and Infinitive › View
She really enjoys ……………. pictures of sunsets.
A. take
B. to take
C. taking
