Years ago we didn't know this, but recent science ______ that people who don't sleep well soon get ill.
#104011
A
showed
B
has shown
C
will show
D
is showing
推荐题目
Mrs Johnson said, “I drew the picture last week.” Mrs Johnson said that       the picture       .
#102870
A
she drew; the week before
B
I had drawn; that week
C
she had drawn; the week before
D
I drew; the last week
 --Why were you not at the concert last night?--I _______a close game between Seattle and Miami.
#100375
A
watched
B
had watched
C
have been watching
D
was watching
Large quantities of information, as well as some timely help _____ since the organization was built . 
#102879
A
has offered
B
had been offered
C
have been offered
D
is offered