--The window is dirty.----I know. It ______ for weeks.
#101363
A
hasn’t cleaned
B
didn’t clean
C
wasn’t cleaned
D
hasn’t been cleaned
推荐题目
 I ___ happy about the price of eggs.
#103741
A
am’t
B
am not
C
do not
D
won’t
In such a fierce competition, a person has to make every effort if he ______ .
#104971
A
has succeeded
B
is to succeed
C
would succeed
D
will succeed