It ____ six years since they last saw each other.

It ____ six years since they last saw each other.
A.was B.had been C.is D.would have been
为什么选啊4.Now that she is out of a job,Lucy _____ going back to school,but she hasn’t decided yet.
A.had considered B.has been considering C.considered D.is going to consider
3.Hey,where you are going!
—Oh,I’m terribly sorry,____.
A.I’m not noticing B.I wasn’t noticing
C.I haven’t noticed D.I don’t notice