[ 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

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Grammar › ViewMegan asked Carl what gave him the right to ask questions like that.
“What ______________ the right to ask questions like this? – Megan asked Carl.
A. gives you
B. gave you
C. is giving him
D. gives him
Articles › View
___ cat is sleeping on the couch.
A. Some
B. An
C. A
D. The
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
