Selecting a mobile phone for personal use is no easy task because technology ____ so rapidly.
#100268
A
will change
B
has changed
C
will have changed
D
is changing
推荐题目
— Why do you do volunteer work in the North-West?— I___ to improve the lives of the children there through my efforts．
#99543
A
was trying
B
have tried
C
am trying
D
tried
Old McDonald gave up smoking for a while, but soon _____ to his old way.
#104146
A
returned
B
returns
C
was returning
D
had returned
—What would you do if it ______ tomorrow?— We have to carry it on, since we’ve got everything ready.
#100406
A
is raining
B
rains
C
will rain
D
rain
Many tall buildings _______ in Shengsi in the past few years.
#103407
A
has been built
B
have been built
C
were built
D
have built
I know Mr. Brown；we ＿＿ to each other at an international conference.
#104419
A
are introduced
B
have been introduced
C
were introduced
D
had been introduced