All the children should be helped when they are ______. They should also be treated with ______.

The initial tunnels were just ___________ the surface of the ground. People were transported in carriages, which were ___________ the narrow tunnels by steam engines.

Technology has quickened the rate _________ wecommunicate with the world around us.

The fire in the hotel around midnight last Friday. Luckily, it was put out soon.— The most important thing is that there is nobody hurt .

____ a pen, two pencils and threebooks on the desk.