-------Take a break, Amy. You ________ on the piano all morning. -------I’d like to, but this time next week I _______a concert at Music Hall.
#102213
A
have practiced, will give
B
are practicing, am giving
C
have been practicing ,will be giving
D
will have practiced, have been giving
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   A computer cannot remember who_____; it simply does what _________.
#103663
A
will use it; it is told
B
uses it; it has told
C
used it; it is told
D
has used it; it told
Do you think you could ______ his voice on the phone?
#100859
A
know
B
remember
C
recognize
D
realize
Experiments of this kind ___in both the U.S and Europe well before the Second World War
#100340
A
had conducted
B
have conducted
C
have been conducted
D
had been conducted