One of the responsibilities of the Coast Guard is to make sure that all ships______followtraffic rules in busy harbors.
A、convenientlyB
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He complained to the bookseller that there were several pages ______ in the book.
Theproposaldeservessupportasitgives______totheneedsofchildren.
In 1900, the energy derived from burning petroleum was only four percent ______ of coal.
Not all birds can fly , ______ do all birds build nests.
______wecanhopeforistoavoidcompletefailureinthecominggamewiththatstrongteam.
