E-mail, as well as telephones, ___ an important part in daily communication.
#102878
A
have played
B
is playing
C
are playing
D
play
推荐题目
By the time he was twelve, Edison _______ to make a living by himself.
#101794
A
would begin
B
has begun
C
had begun
D
began
The world will be different from what it is now, and we will have to be prepared to ____to the change.
#100366
A
adapt
B
adopt
C
apply
D
devote
Only a small percentage of the graduates ___________________ a job.
#100121
A
have been offered
B
have offered
C
has been offered
D
has offered
My friend, who on the International Olympic Committee all his life, is retiring next month.
#101632
A
served
B
is serving
C
had served
D
has served
Don’t disturb me. I_______ letters all morning and have written ten so far.
#100860
A
have written
B
am writing
C
was writing
D
have been writing