His illness was too serious, otherwise he _______ saved.

Did your father come back early last night? —–Yes ,It was not yet eight o’clock _____he arrived home

Our journey was slow because the bus stopped atdifferent villages________．

What has made him look like lacking sleep?—– _____ his wife is ill and he has to get up several times a night to attend to her.

Is that man Mr Hu—That ______ be Mr Hu. Because he has gone to Japan with his wife.