Armstrong became interested in _______ ever since he took his first _______ at the age of six.
—When will the railway that connects the two cities open? —next year. Only two thirds been built.
—The apple pies here tastethan those from anywhere else. —Yes. But it will be better if they are.
The Yellow Riverflood large areas, but now the waters of it are used toenergy.
—Where shall I go for the summer holiday? —How about Xiamen? It is a city worth on a bike.
Why is honest leader like him supported by few workers?