H1N1 flu has become the leading influenza virus in all countries，and _________worldwide have even died from it.
| A．a great deal of |
| B．a great many |
| C．the large number of |
| D．a plenty of |
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H1N1 flu has become the leading influenza virus in all countries，and _________worldwide have even died from it.
| A．a great deal of |
| B．a great many |
| C．the large number of |
| D．a plenty of |
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