__________ the experiment right, I tried again and succeeded.
| A．Not having done | B．Having not done | C．Not doing | D．Not done |
Jessica suggested the problem worth paying attention ______ at the meeting.
| A．to be discussed | B．to been discussed |
| C．being discussed | D．be discussed |
--- The news that the scientists in China are trying the ways to reduce the fog and haze was? ---- Top notch! Never have I seen _____ before。
| A．a better one | B．a worse one |
| C．the best one | D．the worst one |
The news that the scientists in China are trying the ways to reduce the fog and haze was ______ on the radio yesterday.
| A．turned out | B．found out |
| C．given out | D．carried out |
—Darling, the headache ________ me.
— No wonder, you _________ the South Korean TV soaps since last night.
| A．kills; have watched |
| B．is killing; have been watching |
| C．is going to kill; were watching |
| D．was killing; had watched |
What would have happened, ______, as far as the river bank?
| A．Edward Snowden had walked farther |
| B．if Edward Snowden should walk farther |
| C．had Edward Snowden walked farther |
| D．if Edward Snowden walked farther |