Do you think that English is _______ useful languange — Yes .It’s very usefull.

The old house we paid a visit _____ at thetop of the hill.

Some Chinese students find it hard to adapt to the life when in London.—Exactly, ______ they’ve learnt a lot about the city before.[ ]

Can I look at the menu before I make an order— Of course. ________, madam.

Who is ______ you want to send to the front?