E-mail, as well as telephones, ______ an important part in daily communication.
#85713
A
is playing
B
have played
C
are playing
D
play
推荐题目
Mary keeps talking about the party. She had a very good time,_______?
#44207
A
hadn’t she
B
had she
C
didn’t she
D
did she
—_____________ do you visit your grandparents?—Twice a month.
#43814
A
How many
B
How much
C
How far
D
How often
Nothing but grass and trees ____ the hill. 
#86172
A
covers 
B
cover 
C
covering 
D
iscovering