1.It ---over ten years since the dog-----

1。It __C_over ten years since the dog_____A is ; died B is ; has been dead C has been;was dead D was;has died 2。One of the girls in our class_C___Hawaii beforeA have been to B has been to C have gone to D has gone to 3。There __A__great changes in our hometown in the past few yearsA。has been Bwas C were D have been4。We _C__some places od interest since we __china A。have visited;arrived B。visited;arrived C。have visited;reached D 。visited;reached5。I heard Andy_A__here for a few days A。has been B。has come C。has arrived D。has got6。At last,he _A__who did thatA。found B,found out不懂问我。