If someone has to an action or policy, they are responsible for it, and may be required to explain it to other people or be punished if it fails．
A．account for B．make up C．focus on D．pay off
One way to species under' threat of extinction - whatever the cause - is to remove them to zoos and parks and breed them there．
A．betray B．resist C．preserve D．dispute
Having heard wolves howling in the forest, Lala her walk up the path to the caves fearing that there might be wild beasts lying in wait for her．
A．accumulated B．circulated C．accelerated D．calculated
Smiling doesn't mean you're happy． Sometimes, it just means that you're strong enough to face problems．
A．fortunately B．eventually C．deliberately D．necessarily
The officials of the National Ministry of Information Industry advise people to limit the personal information they make about themselves online．
A．available B．affordable C．acceptable D．valuable
In order to be a strong and effective partner with the Asia Pacific region, American president Obama thinks it absolutely to have a strong relationship with China．
A．vital B．potential C．specific D．awkward
