27. As five children under 10 got drowned in a southern province, it is not socially _____ for
parents to leave children unattended at that age.
A.acceptable | B.affordable | C.sustainable | D.believable |
Rather than sticking to the principles stubbornly, China is now adopting a new concept in economic policies in a/an _______way that shows its own characteristics.
A.sustainable | B.flexible | C.invisible | D.available |
The keeper of the spring cleared away the leaves and branches, and wiped away the silt(淤泥) that would _______ have choked and polluted the fresh flow of water.
A.thus | B.otherwise | C.therefore | D.later |
Don’t stand by when you come across________ have difficulty in supporting their family because of serious illness.
A.Who | B.Whoever | C.Whichever | D.Whomever |
Death toll from Typhoon Haiyan in the Philippines _______ 3,637, after the strongest storm this year destroyed the central part of the country on Nov. 8, 2013.
A.rose to | B.arose from | C.rose from | D.raised to |
To protect the environment, the local government has put up a lot of ______ to warn the citizens not to litter the ground.
A.sighs | B.sights | C.signals | D.signs |