Do you know Tom very well?---Yes,he and I _________friends since we met in Beijing last year.A.have becomeB.becomeC.have beenD.are

Do you know Tom very well?---Yes,he and I _________friends since we met in Beijing last year.A.have becomeB.becomeC.have beenD.are
Do you know Tom very well?---Yes,he and I _________friends since we met in Beijing last year.
A.have becomeB.becomeC.have beenD.are

Do you know Tom very well?---Yes,he and I _________friends since we met in Beijing last year.A.have becomeB.becomeC.have beenD.are
选A.有since就必须用完成时,答案就在A.D之间了,根据语境这里不是被动,就选A.

是C吧

A 主句的谓v.用现在完成时，而且是延续性动词；从句的谓v.用一般过去时，而且须是终止性动词。

C

A现在完成时 若是for+段时间，非延续性动词应改为延续性动词

你知道汤姆很好吗?——是的,他和我_________friends自从我们去年在北京会晤。