It could take 4-6 months before the first batch（批）of vaccines （疫苗）are available to fight A/H1N1 flu ________ as swine flu, WHO officials said.
| A．known | B．to know | C．knowing | D．having known |
My sister studies hard．She always goes to school ______ she catches a cold．
| A．even if | B．as if | C．only if | D．as though |
—When was it that he_______ to lend you some money?
—After he talked with his father, he told me that he could lend me money．
| A．gave up | B．made up his mind |
| C．took his mind | D．kept in mind |
Mike insisted that he _____ nothing wrong and______ free．
| A．did; set |
| B．had done; be set |
| C．do; should be set |
| D．had done; must be set |
Only with the greatest of luck_______ to escape from the rising flood waters．
| A．managed she | B．she managed |
| C．did she manage | D．she did manage |
They decided to cycle along the Mekong River from_________ it begins to ______ it ends．
| A．what; what |
| B．where; where |
| C．the place where; what |
| D．what; the place where |