The old man died suddenly and didn’t .
| A．cry |
| B．experience |
| C．pay |
| D．suffer |
The driver wanted to park his car near the roadside, but was asked by the police _________.
| A．not to do | B．not to | C．not do | D．do not |
In the global economy, a new drug for cancer, _________ it is discovered, will create many economic possibilities around the world.
| A．whatever | B．whoever | C．wherever | D．whichever |
You can’t judge a book by its cover, ____________.
| A．as the saying goes old | B．goes as the old saying |
| C．as the old saying goes | D．goes as old the saying |
The door _______ open, no matter how hard she pushed.
| A．shouldn‘t | B．couldn't | C．wouldn't | D．mightn't |
Anyone, once _______ positive for H7N9 flu virus, will receive free medical treatment from our government.
| A．to be tested | B．being tested | C．tested | D．to test |