E-mail, as well as the telephone, ___________ an important part in daily communication. 
#85616
A
is playing
B
have played
C
are playing
D
play
推荐题目
The United Nations ____  in 1945.
#86130
A
werefound
B
werefounded
C
wasfounded
D
wasfound
.One out of three villagers                  a new school in the village.
#86162
A
advocates to build
B
advocate to build
C
advocates building
D
advocate building