[ 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:
Tenses and Structures › View. Which of the following is a correct collocation? (make a mistake, do a mistake)
A. do a fault
B. make an error
C. make a mistake
D. do a blunder
Grammar › View
________ I’m going to bed later, I’ve been waking up later.
A. Even if
B. Now that
C. In case
D. Whether or not
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
