How long has your mother ______ Xinghua—About two weeks. But she will come back tomorrow.

Shall we go to Alberta for the summer holiday—_________. It’s one of the world’s cleanest cities.

doesn’t want to move to New York because shethinks if she _____there ,she wouldn’t be able to see her parents very often

The exam was very difficult but everyone ______ pass.

__ US newspaper reported, that fromnext autumn, ________ new computer system will follow the progress ofinternational students at their schools in the USA.