---It’s raining! When did it start?---I don’t know exactly. In fact, it ____ all this afternoon. 
#39869
A
lasts
B
has lasted
C
lasted
D
will last
推荐题目
Many doctors and scientists are working hard on curing AIDS. We hope AIDS _____ one day.
#41672
A
will cure
B
will be cured
C
will treat
D
will be treated
- Could you tell me_______?- Every four years.
#39711
A
how often the Olympic Games take place
B
when the Olympic Games are held
C
how often are the Olympic Games held
D
how often the Olympic Games were held
The population of the world         still         now.
#42222
A
will; grow
B
has; grown
C
is; growing
D
is; grown