Many firms give away small quantities of their productions as _______ so that people can try them before buying.
#5243
A
signs
B
signals
C
examples
D
samples
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We won't know whether it will be successful. We won't know whether there will be good _____.
#6929
A
ends
B
results
C
effects
D
causes
________his dream of going to college will come true is uncertain.
#5928
A
That
B
Whether
C
If
D
Even if
His name was on the _____ of my tongue, but I just couldn't recall it.
#7528
A
end
B
point
C
edge
D
tip
I’m trying to break the _________ of talking in class.
#6446
A
tradition
B
convenience
C
leisure
D
habit