While I admit that English words keep escaping from our memory, constant ______ to them not only increases our understanding of them, but likely plants them into our mind.

A．pressure	B．exposure
C．procedure	D．mixture

To make contributions to the protection of the environment, the company encourages its workforce to make the _______ to alternative means of transportation such as carpooling or biking to reduce air pollution.

A．switch	B．conclusion
C．variety	D．enquiry

Every time I take part in a friend’s big party I always go to talk to those who just sit alone so that they don’t feel ________.

A．let out	B．wiped out
C．left out	D．faded out

In order to enrich people’s life, the local government has _________ the construction of another stadium.

A．rejected	B．agreed
C．approved	D．delivered

. “Will this little girl about half my age solve my problem?” I looked at her _______, but finally decided to have a try.

A．skeptically	B．absolutely
C．desperately	D．hopefully

Though they may know their parents are right, teenagers sometimes tend to _____ act against their parents’ wishes because they hope to get away from the control of them.

A．accidentally	B．typically
C．eventually	D．deliberately

Compared with the generation of our grandparents, who grew up in an age when people were _____ in almost every kind of materials, we should be content with the abundant supply.

A．lacking	B．curious
C．cautious	D．accurate

Tom has agreed to let me use his computer to surf the Internet, and _______ I’m treating him to a good dinner at the newly-built restaurant just around the corner.

A．in charge	B．in place
C．in turn	D．in return