----I _________ the book for a whole hour . ---- No wonder you look so tired .
#103372
A
have read
B
have been reading
C
read
D
are reading
推荐题目
A computer cannot remember who_____; it simply does what _________.
#103663
A
will use it; it is told
B
uses it; it has told
C
used it; it is told
D
has used it; it told
I would have helped you，but I ________ the whole week.
#99421
A
was really occupied
B
really occupied
C
have really occupied
D
will be really occupied
--Did you write to Mary last month? --No, but I’ll_______her over Christmas Day.
#104173
A
be seen
B
be seeing
C
have seen
D
have been seeing
By the end of last year, another new gymnasium________ in London.
#99201
A
have been completed
B
were completed
C
had been completed
D
was completed
In order to keep the balance of ecosystem, every possible means _______to deal with the problems of the over-exploiting of natural resources.
#101293
A
has tried
B
has been tried
C
have taken
D
have been taken