52.We ______ the bus for half an hour,but it ______ yetA.have waited,hasn't comeB.have been waiting,has been comeC.have been waited for,doesn't comeD.have been waiting for,hasn't come

52.We ______ the bus for half an hour,but it ______ yetA.have waited,hasn't comeB.have been waiting,has been comeC.have been waited for,doesn't comeD.have been waiting for,hasn't come
52.We ______ the bus for half an hour,but it ______ yet
A.have waited,hasn't come
B.have been waiting,has been come
C.have been waited for,doesn't come
D.have been waiting for,hasn't come

52.We ______ the bus for half an hour,but it ______ yetA.have waited,hasn't comeB.have been waiting,has been comeC.have been waited for,doesn't comeD.have been waiting for,hasn't come
D.have been waiting for,hasn't come