Selecting a mobile phone for personal use is no easy task because technology __________ so rapidly.
#104438
A
is changing
B
has changed
C
will have changed
D
will change
推荐题目
-- Hi, Samantha! When did you arrive in Leeds? --- Last week, I ___________ a different culture since then.
#101020
A
was experiencing
B
will be experiencing
C
have been experiencing
D
had been experiencing
________ a certain doubt among the people as to the practical value of the project.
#99564
A
It has
B
They have
C
It remains
D
There remains
---Alice, why didn’t you come the other day ? .---I______, but I had an unexpected visitor.
#100823
A
had
B
would
C
was going
D
did
--- What are you busy with? --- The conference in our city next week.
#103322
A
held
B
to be held
C
be holding
D
will be held
---What’s wrong with you, Mr. Keller? --- I’ve had a very bad headache for two days. At first, I ______ I caught a cold, but the medicine ______.
#102841
A
thought, hasn’t worked
B
had thought, didn’t work
C
thought, hadn’t worked
D
have thought, hasn’t worked