Years ago we didn’t know this , but recent science______that people who don’t sleep well soon get ill.
#103776
A
showed
B
has shown
C
will show
D
is showing
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——Will you come to my office when you      your work?  ——Sure. 
#103289
A
finished
B
are finishing
C
have finished
D
will finish
– Your job ________ open for your return.– Thanks.
#104588
A
will be kept
B
will keep
C
had kept
D
had been kept