It is not very easy for the Chinese ________ for a visa(签证) to the USA.

eper of the spring cleared away the leaves and branches, and wiped away the silt that would _______ have choked and polluted the fresh flow of water.

ets done _______ when people do ittogether,and the rewards are higher too.

It is essential that these applicationforms ______ back as early as possible

Gandi insisted on winning independence by peaceful struggles，not by ___.