—How _______ do you chat with your aunt on the Internet?—Now and then, though we don’t have much in common.
with the size of the whole earth , the biggest ocean does not seem big at all .
It was back home after the experiment.
He kept looking at her, wondering whether he her somewhere.
---How long has your brother been working here? ---_______ he graduated from college in 2007.
Tom insisted what he said ______ true, but we insisted that he _____ and have a look.