Playing QQ’s “Happy Farm” by planting, watering, fertilizing, spraying, harvesting and selling of virtual vegetables, fruits and flowers, we can find out ________ all the excitement is about.
#4721
A
that
B
if
C
what
D
when
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 No sooner ______ on board the train than it______ to move.
#4621
A
did he go; had started
B
he went; started
C
had he gone; started
D
he had gone; had started