Large quantities of information, as well as some timely help ________ since the organization was built.
#100487
A
has offered
B
had been offered
C
have been offered
D
is offered
推荐题目
I have to see the doctor because I         a lot lately.
#102282
A
have been coughing
B
had coughed
C
coughed
D
cough
I won’t tell the student the answer to the math problem until he      on it for more than an hour.
#100166
A
has been working
B
will have worked
C
will have been working
D
had worked
—Will you go to the park now? —Not until I ________ my physics exercises. 
#104737
A
will finish
B
have finished
C
will have finished
D
had finished