—Those scientists invented a robot to care for kids! —It’s not surprising．They ____ wonders all the time．
#103461
A
worked
B
were working
C
work
D
have been working
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—I wonder if you could go with me to the shopping mall.—Don’t disturb me. I ______ my experiment report all the morning and haven’t finished yet.
#101610
A
wrote
B
was writing
C
have written
D
have been writing
We arranged to meet at the cinema at 7:30, but he failed to _________.
#100734
A
turn down
B
turn off
C
turn over
D
turn up
The novel written by the author ________ best, but five years ago no one could have imagined how great a role he ________ in the literary world.
#99610
A
sells; was to play
B
was selling; was playing
C
sold; had played
D
is sold; is playing
The story ______, and everybody knows about it.
#102271
A
has been got round
B
got round
C
was got round
D
has got round
George has arrived, but I did not know he ______ until yesterday.
#103817
A
comes
B
will come
C
is coming
D
was coming