Let’s make good use of our energy and_________ wasting water, electricity, paper and so on.
Admiral (海军上将) Hu Yanlin said that security demands required China to have its own aircraft carrier, and _______ any country had the right to build one.
. By the middle of August, a national campaign was underway ________ drunken drivers.
. -- Jack _______ for work in the downtown. What was the matter?-- _______, but he had no luck.
What __ public is concerned about is whether the scientists win be able to find _______ cram for the disease.
Alice was_________the letter from Tom, but it didn't reach her for some reason.