13. The struggle against the bird flu and the suffering _________ brought about have become a big concern across the world.
|
A.which has |
B.it is |
C.it has |
D.what is |
14. Since the H1N1 flu is spreading, it’s necessary that whoever has a fever _________ to hospital as soon as possible.
|
A.went |
B.must go |
C.has gone |
D.Go |
15. —When Lily fainted, we could have turned to your father for help.
—Yes, sending her to hospital _________ necessary.
|
A.hadn’t been |
B.wasn’t |
C.wouldn’t be |
D.weren’t |