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
推荐题目
If you _________ reading that book, take it back to the library.
#100473
A
have finished
B
will finish
C
finished
D
are finishing
— Look! Somebody _____the sofa.— Well, it wasn't me. I didn't do it.
#100461
A
is cleaning
B
was cleaning
C
has cleaned
D
had cleaned
——I ran into the back of a truck yesterday and damaged my car badly.——I suppose you_______too fast.
#99673
A
had driven
B
drove
C
have driven
D
were driving
---- Look! Everything here is under construction. ---- What’s the pretty small house that ____________ for?
#101031
A
is being built
B
has been built
C
is built
D
is building
By the time he realizes he ____ into a trap, it’ll be too late for him to do anything about it.
#104957
A
walks
B
walked
C
has walked
D
had walked