425.When I called you this morning, nobody answered the phone. Where ____?
A.did you go
B.have you gone
C.were you
D.had you been
426.Has your father returned from Africa yet?
Yes,but he___ here for only three days before his company sent him to Australia.
A.was
B.has been
C.will be
D.would be
425.答案是C;由this morning暗示,应用一般过去时。
426.答案是A;由下文sent得知，此处应用一般过去时，强调事情发生在过去。
