語境填空.

click，goods，maintain，digital，forever，update，tend，site，acquire，diagram

（1）The

digital

digital

camera was bought online at a low price.
（2）With the development of society，more and more volunteers

tend

tend

to offer their helping hands to people in need.
（3）These

goods

goods

were nice in quality but were at low prices.
（4）In order to

maintain

maintain

relationships，the two young men get together twice a year.
（5）

Click

Click

the mouse to select what you want and then buy it.
（6）Teachers have to constantly

update

update

their knowledge in order to maintain their professional competence.
（7）All the information you

acquire

acquire

by asking questions will make you more knowledgeable.
（8）The

diagram

diagram

he drew by himself was of great value for the explorers.
（9）They invested a large sum of money on the foundation of the school

site

site

.
（10）People also realized that the supply of coal and gas would not last

forever

forever

.