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People are recycling many things which they      away in the past.
#66646
A
had thrown
B
will be throwing
C
were throwing
D
would have thrown
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It is not always easy for the public to see _____ use a new invention can be of to human life.
#68925
A
hose
B
what
C
which
D
that
David is such a good boy _________ all the teachers like.
#73437
A
that
B
who
C
as
D
whom
 Have you got any explanation to the question ___ he came here for last weekend?
#67484
A
why
B
what
C
how
D
which
His house, for _______ he paid $10, 000, is now worth $50, 000.
#70538
A
that
B
it
C
them
D
which
If I _____ you, I _____ late for school this morning.
#41177
A
were, wouldn’t be
B
were, wouldn’t
C
was, won’t be
D
am, will