7.He visited the Effel Tower, which_____________to 1889, during his stay in France last summer.
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.
I’d prefer ______ in the office rather than ______ at home watching TV.